From 4bec99174a5911457cddd87ceab4f5e038cc8141 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 29 Aug 2010 18:17:14 +0200 Subject: USB: core: update comment to match current function name Found while debugging a USB problem and trying to find the mentioned function. Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 84c1897188d2..5da546c4fd79 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3629,7 +3629,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev) } if (!parent_hdev) { - /* this requires hcd-specific logic; see OHCI hc_restart() */ + /* this requires hcd-specific logic; see ohci_restart() */ dev_dbg(&udev->dev, "%s for root hub!\n", __func__); return -EISDIR; } -- cgit v1.2.3 From f7dd64916bb6cfae8c96eaa3c754c30b5046586f Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Mon, 30 Aug 2010 22:50:20 +0100 Subject: USB: output an error message when the pipe type doesn't match the endpoint type Commit f661c6f8c67bd55e93348f160d590ff9edf08904 adds a check of the pipe type if CONFIG_USB_DEBUG is enabled, but it doesn't output anything if this scenario occurs. Signed-off-by: Simon Arlott Cc: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/urb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 419e6b34e2fe..c14fc082864f 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -401,8 +401,11 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) }; /* Check that the pipe's type matches the endpoint's type */ - if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) + if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) { + dev_err(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n", + usb_pipetype(urb->pipe), pipetypes[xfertype]); return -EPIPE; /* The most suitable error code :-) */ + } /* enforce simple/standard policy */ allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT | URB_DIR_MASK | -- cgit v1.2.3 From 3df7169e73fc1d71a39cffeacc969f6840cdf52b Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 10 Sep 2010 16:37:05 -0400 Subject: OHCI: work around for nVidia shutdown problem MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch (as1417) fixes a problem affecting some (or all) nVidia chipsets. When the computer is shut down, the OHCI controllers continue to power the USB buses and evidently they drive a Reset signal out all their ports. This prevents attached devices from going to low power. Mouse LEDs stay on, for example, which is disconcerting for users and a drain on laptop batteries. The fix involves leaving each OHCI controller in the OPERATIONAL state during system shutdown rather than putting it in the RESET state. Although this nominally means the controller is running, in fact it's not doing very much since all the schedules are all disabled. However there is ongoing DMA to the Host Controller Communications Area, so the patch also disables the bus-master capability of all PCI USB controllers after the shutdown routine runs. The fix is applied only to nVidia-based PCI OHCI controllers, so it shouldn't cause problems on systems using other hardware. As an added safety measure, in case the kernel encounters one of these running controllers during boot, the patch changes quirk_usb_handoff_ohci() (which runs early on during PCI discovery) to reset the controller before anything bad can happen. Reported-by: Pali Rohár Signed-off-by: Alan Stern CC: David Brownell Tested-by: Pali Rohár CC: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd-pci.c | 4 +++- drivers/usb/host/ohci-hcd.c | 9 ++++++++- drivers/usb/host/ohci-pci.c | 18 ++++++++++++++++++ drivers/usb/host/ohci.h | 1 + drivers/usb/host/pci-quirks.c | 18 +++++++++++------- 5 files changed, 41 insertions(+), 9 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index c3f98543caaf..3799573bd385 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -329,8 +329,10 @@ void usb_hcd_pci_shutdown(struct pci_dev *dev) return; if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) && - hcd->driver->shutdown) + hcd->driver->shutdown) { hcd->driver->shutdown(hcd); + pci_disable_device(dev); + } } EXPORT_SYMBOL_GPL(usb_hcd_pci_shutdown); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index c3b4ccc7337b..8ef3c1944364 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -398,7 +398,14 @@ ohci_shutdown (struct usb_hcd *hcd) ohci = hcd_to_ohci (hcd); ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); - ohci_usb_reset (ohci); + ohci->hc_control = ohci_readl(ohci, &ohci->regs->control); + + /* If the SHUTDOWN quirk is set, don't put the controller in RESET */ + ohci->hc_control &= (ohci->flags & OHCI_QUIRK_SHUTDOWN ? + OHCI_CTRL_RWC | OHCI_CTRL_HCFS : + OHCI_CTRL_RWC); + ohci_writel(ohci, ohci->hc_control, &ohci->regs->control); + /* flush the writes */ (void) ohci_readl (ohci, &ohci->regs->control); } diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 6bdc8b25a6a1..36ee9a666e93 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -201,6 +201,20 @@ static int ohci_quirk_amd700(struct usb_hcd *hcd) return 0; } +/* nVidia controllers continue to drive Reset signalling on the bus + * even after system shutdown, wasting power. This flag tells the + * shutdown routine to leave the controller OPERATIONAL instead of RESET. + */ +static int ohci_quirk_nvidia_shutdown(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + + ohci->flags |= OHCI_QUIRK_SHUTDOWN; + ohci_dbg(ohci, "enabled nVidia shutdown quirk\n"); + + return 0; +} + /* * The hardware normally enables the A-link power management feature, which * lets the system lower the power consumption in idle states. @@ -332,6 +346,10 @@ static const struct pci_device_id ohci_pci_quirks[] = { PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4399), .driver_data = (unsigned long)ohci_quirk_amd700, }, + { + PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID), + .driver_data = (unsigned long) ohci_quirk_nvidia_shutdown, + }, /* FIXME for some of the early AMD 760 southbridges, OHCI * won't work at all. blacklist them. diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index 5bf15fed0d9f..51facb985c84 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -403,6 +403,7 @@ struct ohci_hcd { #define OHCI_QUIRK_HUB_POWER 0x100 /* distrust firmware power/oc setup */ #define OHCI_QUIRK_AMD_ISO 0x200 /* ISO transfers*/ #define OHCI_QUIRK_AMD_PREFETCH 0x400 /* pre-fetch for ISO transfer */ +#define OHCI_QUIRK_SHUTDOWN 0x800 /* nVidia power bug */ // there are also chip quirks/bugs in init logic struct work_struct nec_work; /* Worker for NEC quirk */ diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 83b5f9cea85a..464ed977b45d 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -169,6 +169,7 @@ static int __devinit mmio_resource_enabled(struct pci_dev *pdev, int idx) static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) { void __iomem *base; + u32 control; if (!mmio_resource_enabled(pdev, 0)) return; @@ -177,10 +178,14 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) if (base == NULL) return; + control = readl(base + OHCI_CONTROL); + /* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */ -#ifndef __hppa__ -{ - u32 control = readl(base + OHCI_CONTROL); +#ifdef __hppa__ +#define OHCI_CTRL_MASK (OHCI_CTRL_RWC | OHCI_CTRL_IR) +#else +#define OHCI_CTRL_MASK OHCI_CTRL_RWC + if (control & OHCI_CTRL_IR) { int wait_time = 500; /* arbitrary; 5 seconds */ writel(OHCI_INTR_OC, base + OHCI_INTRENABLE); @@ -194,13 +199,12 @@ static void __devinit quirk_usb_handoff_ohci(struct pci_dev *pdev) dev_warn(&pdev->dev, "OHCI: BIOS handoff failed" " (BIOS bug?) %08x\n", readl(base + OHCI_CONTROL)); - - /* reset controller, preserving RWC */ - writel(control & OHCI_CTRL_RWC, base + OHCI_CONTROL); } -} #endif + /* reset controller, preserving RWC (and possibly IR) */ + writel(control & OHCI_CTRL_MASK, base + OHCI_CONTROL); + /* * disable interrupts */ -- cgit v1.2.3 From 834e2312e7a384877a876b0d34dffc3046c96bcb Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 13 Sep 2010 10:43:25 -0400 Subject: USB: teach "devices" file about Wireless and SuperSpeed USB The /sys/kernel/debug/usb/devices file doesn't know about Wireless or SuperSpeed USB. This patch (as1416b) teaches it, and updates the Documentation/usb/proc_sub_info.txt file accordingly. Signed-off-by: Alan Stern CC: David Vrabel CC: Sarah Sharp Signed-off-by: Greg Kroah-Hartman --- Documentation/usb/proc_usb_info.txt | 34 ++++++++++++++++++++++------------ drivers/usb/core/devices.c | 11 +++++++---- 2 files changed, 29 insertions(+), 16 deletions(-) (limited to 'drivers/usb/core') diff --git a/Documentation/usb/proc_usb_info.txt b/Documentation/usb/proc_usb_info.txt index fafcd4723260..afe596d5f201 100644 --- a/Documentation/usb/proc_usb_info.txt +++ b/Documentation/usb/proc_usb_info.txt @@ -1,12 +1,17 @@ /proc/bus/usb filesystem output =============================== -(version 2003.05.30) +(version 2010.09.13) The usbfs filesystem for USB devices is traditionally mounted at /proc/bus/usb. It provides the /proc/bus/usb/devices file, as well as the /proc/bus/usb/BBB/DDD files. +In many modern systems the usbfs filsystem isn't used at all. Instead +USB device nodes are created under /dev/usb/ or someplace similar. The +"devices" file is available in debugfs, typically as +/sys/kernel/debug/usb/devices. + **NOTE**: If /proc/bus/usb appears empty, and a host controller driver has been linked, then you need to mount the @@ -106,8 +111,8 @@ Legend: Topology info: -T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=ddd MxCh=dd -| | | | | | | | |__MaxChildren +T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=dddd MxCh=dd +| | | | | | | | |__MaxChildren | | | | | | | |__Device Speed in Mbps | | | | | | |__DeviceNumber | | | | | |__Count of devices at this level @@ -120,8 +125,13 @@ T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=ddd MxCh=dd Speed may be: 1.5 Mbit/s for low speed USB 12 Mbit/s for full speed USB - 480 Mbit/s for high speed USB (added for USB 2.0) + 480 Mbit/s for high speed USB (added for USB 2.0); + also used for Wireless USB, which has no fixed speed + 5000 Mbit/s for SuperSpeed USB (added for USB 3.0) + For reasons lost in the mists of time, the Port number is always + too low by 1. For example, a device plugged into port 4 will + show up with "Port=03". Bandwidth info: B: Alloc=ddd/ddd us (xx%), #Int=ddd, #Iso=ddd @@ -291,7 +301,7 @@ Here's an example, from a system which has a UHCI root hub, an external hub connected to the root hub, and a mouse and a serial converter connected to the external hub. -T: Bus=00 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 +T: Bus=00 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 28/900 us ( 3%), #Int= 2, #Iso= 0 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 0.00 @@ -301,21 +311,21 @@ C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms -T: Bus=00 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 4 +T: Bus=00 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 4 D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0451 ProdID=1446 Rev= 1.00 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=255ms -T: Bus=00 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0 +T: Bus=00 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=04b4 ProdID=0001 Rev= 0.00 C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=mouse E: Ad=81(I) Atr=03(Int.) MxPS= 3 Ivl= 10ms -T: Bus=00 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 +T: Bus=00 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0565 ProdID=0001 Rev= 1.08 S: Manufacturer=Peracom Networks, Inc. @@ -330,12 +340,12 @@ E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl= 8ms Selecting only the "T:" and "I:" lines from this (for example, by using "procusb ti"), we have: -T: Bus=00 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 -T: Bus=00 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 4 +T: Bus=00 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 +T: Bus=00 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 4 I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub -T: Bus=00 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0 +T: Bus=00 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0 I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=mouse -T: Bus=00 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 +T: Bus=00 Lev=02 Prnt=02 Port=02 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 I: If#= 0 Alt= 0 #EPs= 3 Cls=00(>ifc ) Sub=00 Prot=00 Driver=serial diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 3449742c00e1..ddb4dc980923 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -66,8 +66,8 @@ #define ALLOW_SERIAL_NUMBER static const char *format_topo = -/* T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=ddd MxCh=dd */ -"\nT: Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%3s MxCh=%2d\n"; +/* T: Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=dddd MxCh=dd */ +"\nT: Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%-4s MxCh=%2d\n"; static const char *format_string_manufacturer = /* S: Manufacturer=xxxx */ @@ -520,11 +520,14 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, speed = "1.5"; break; case USB_SPEED_UNKNOWN: /* usb 1.1 root hub code */ case USB_SPEED_FULL: - speed = "12 "; break; + speed = "12"; break; + case USB_SPEED_WIRELESS: /* Wireless has no real fixed speed */ case USB_SPEED_HIGH: speed = "480"; break; + case USB_SPEED_SUPER: + speed = "5000"; break; default: - speed = "?? "; + speed = "??"; } data_end = pages_start + sprintf(pages_start, format_topo, bus->busnum, level, parent_devnum, -- cgit v1.2.3 From 496dda704bca1208e08773ba39b29a69536f5381 Mon Sep 17 00:00:00 2001 From: Maulik Mankad Date: Fri, 24 Sep 2010 13:44:06 +0300 Subject: usb: musb: host: unmap the buffer for PIO data transfers The USB stack maps the buffer for DMA if the controller supports DMA. MUSB controller can perform DMA as well as PIO transfers. The buffer needs to be unmapped before CPU can perform PIO data transfers. Export unmap_urb_for_dma() so that drivers can perform the DMA unmapping in a sane way. Signed-off-by: Maulik Mankad Acked-by: Alan Stern Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 3 ++- drivers/usb/musb/musb_host.c | 5 +++++ include/linux/usb/hcd.h | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 5cca00a6d09d..cb2d894321da 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1263,7 +1263,7 @@ static void hcd_free_coherent(struct usb_bus *bus, dma_addr_t *dma_handle, *dma_handle = 0; } -static void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) +void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) { enum dma_data_direction dir; @@ -1307,6 +1307,7 @@ static void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) URB_DMA_MAP_SG | URB_DMA_MAP_PAGE | URB_DMA_MAP_SINGLE | URB_MAP_LOCAL); } +EXPORT_SYMBOL_GPL(unmap_urb_for_dma); static int map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 9e65c47cc98b..62e39fc57211 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -41,6 +41,7 @@ #include #include #include +#include #include "musb_core.h" #include "musb_host.h" @@ -1332,6 +1333,8 @@ void musb_host_tx(struct musb *musb, u8 epnum) */ if (length > qh->maxpacket) length = qh->maxpacket; + /* Unmap the buffer so that CPU can use it */ + unmap_urb_for_dma(musb_to_hcd(musb), urb); musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset); qh->segsize = length; @@ -1752,6 +1755,8 @@ void musb_host_rx(struct musb *musb, u8 epnum) #endif /* Mentor DMA */ if (!dma) { + /* Unmap the buffer so that CPU can use it */ + unmap_urb_for_dma(musb_to_hcd(musb), urb); done = musb_host_packet_rx(musb, urb, epnum, iso_err); DBG(6, "read %spacket\n", done ? "last " : ""); diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 3b571f1ffbb3..fe89f7c298aa 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -329,6 +329,7 @@ extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_hcd_unlink_urb(struct urb *urb, int status); extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status); +extern void unmap_urb_for_dma(struct usb_hcd *, struct urb *); extern void usb_hcd_flush_endpoint(struct usb_device *udev, struct usb_host_endpoint *ep); extern void usb_hcd_disable_endpoint(struct usb_device *udev, -- cgit v1.2.3 From 25013315678c78091a7826be7097fa2b60e30aac Mon Sep 17 00:00:00 2001 From: matt mooney Date: Fri, 24 Sep 2010 12:17:33 -0700 Subject: usb: change to new flag variable Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Greg Kroah-Hartman --- drivers/usb/atm/Makefile | 4 +--- drivers/usb/core/Makefile | 4 +--- drivers/usb/gadget/Makefile | 4 +--- drivers/usb/host/Makefile | 4 +--- drivers/usb/misc/Makefile | 4 +--- drivers/usb/musb/Makefile | 4 +--- drivers/usb/storage/Makefile | 2 +- drivers/usb/wusbcore/Makefile | 4 +--- 8 files changed, 8 insertions(+), 22 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/atm/Makefile b/drivers/usb/atm/Makefile index 4c4a776ab1cd..d40a126e47a3 100644 --- a/drivers/usb/atm/Makefile +++ b/drivers/usb/atm/Makefile @@ -8,6 +8,4 @@ obj-$(CONFIG_USB_UEAGLEATM) += ueagle-atm.o obj-$(CONFIG_USB_ATM) += usbatm.o obj-$(CONFIG_USB_XUSBATM) += xusbatm.o -ifeq ($(CONFIG_USB_DEBUG),y) -EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index ec16e6029905..17c8e2d2a07d 100644 --- a/drivers/usb/core/Makefile +++ b/drivers/usb/core/Makefile @@ -16,6 +16,4 @@ endif obj-$(CONFIG_USB) += usbcore.o -ifeq ($(CONFIG_USB_DEBUG),y) -EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 27283df37d09..c68200536500 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -1,9 +1,7 @@ # # USB peripheral controller drivers # -ifeq ($(CONFIG_USB_GADGET_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o obj-$(CONFIG_USB_NET2280) += net2280.o diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index b6315aa47f7a..f0414429502f 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -2,9 +2,7 @@ # Makefile for USB Host Controller Drivers # -ifeq ($(CONFIG_USB_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG isp1760-objs := isp1760-hcd.o isp1760-if.o fhci-objs := fhci-hcd.o fhci-hub.o fhci-q.o fhci-mem.o \ diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index d203ff6870e4..d2633c035626 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -26,6 +26,4 @@ obj-$(CONFIG_USB_YUREX) += yurex.o obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ -ifeq ($(CONFIG_USB_DEBUG),y) -EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile index f664ecfa21c4..16aaae28714d 100644 --- a/drivers/usb/musb/Makefile +++ b/drivers/usb/musb/Makefile @@ -78,6 +78,4 @@ endif # Debugging -ifeq ($(CONFIG_USB_MUSB_DEBUG),y) - EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_MUSB_DEBUG) := -DDEBUG diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile index 0332aa5df24f..65dbf652487e 100644 --- a/drivers/usb/storage/Makefile +++ b/drivers/usb/storage/Makefile @@ -5,7 +5,7 @@ # Rewritten to use lists instead of if-statements. # -EXTRA_CFLAGS := -Idrivers/scsi +ccflags-y := -Idrivers/scsi obj-$(CONFIG_USB_UAS) += uas.o obj-$(CONFIG_USB_STORAGE) += usb-storage.o diff --git a/drivers/usb/wusbcore/Makefile b/drivers/usb/wusbcore/Makefile index 75f1ade66258..f0d8045c802e 100644 --- a/drivers/usb/wusbcore/Makefile +++ b/drivers/usb/wusbcore/Makefile @@ -21,6 +21,4 @@ wusb-wa-objs := wa-hc.o \ wa-rpipe.o \ wa-xfer.o -ifeq ($(CONFIG_USB_WUSB_CBAF_DEBUG),y) -EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_USB_WUSB_CBAF_DEBUG) := -DDEBUG -- cgit v1.2.3 From 80f0cf3947889014d3a3dc0ad60fb87cfda4b12a Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 30 Sep 2010 15:16:23 -0400 Subject: USB: disable endpoints after unbinding interfaces, not before This patch (as1430) fixes a bug in usbcore. When a device configuration change occurs or a device is removed, the endpoints for the old config should be completely disabled. However it turns out they aren't; this is because usb_unbind_interface() calls usb_enable_interface() or usb_set_interface() to put interfaces back in altsetting 0, which re-enables the interfaces' endpoints. As a result, when a device goes through a config change or is unconfigured, the ep_in[] and ep_out[] arrays may be left holding old pointers to usb_host_endpoint structures. If the device is deauthorized these structures get freed, and the stale pointers cause errors when the the device is eventually unplugged. The solution is to disable the endpoints after unbinding the interfaces instead of before. This isn't as large a change as it sounds, since usb_unbind_interface() disables all the interface's endpoints anyway before calling the driver's disconnect routine, unless the driver claims to support "soft" unbind. This fixes Bugzilla #19192. Thanks to "Tom" Lei Ming for diagnosing the underlying cause of the problem. Signed-off-by: Alan Stern Tested-by: Carsten Sommer CC: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/message.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 9f0ce7de0e36..d6e3e410477e 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1140,13 +1140,6 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) { int i; - dev_dbg(&dev->dev, "%s nuking %s URBs\n", __func__, - skip_ep0 ? "non-ep0" : "all"); - for (i = skip_ep0; i < 16; ++i) { - usb_disable_endpoint(dev, i, true); - usb_disable_endpoint(dev, i + USB_DIR_IN, true); - } - /* getting rid of interfaces will disconnect * any drivers bound to them (a key side effect) */ @@ -1176,6 +1169,13 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) if (dev->state == USB_STATE_CONFIGURED) usb_set_device_state(dev, USB_STATE_ADDRESS); } + + dev_dbg(&dev->dev, "%s nuking %s URBs\n", __func__, + skip_ep0 ? "non-ep0" : "all"); + for (i = skip_ep0; i < 16; ++i) { + usb_disable_endpoint(dev, i, true); + usb_disable_endpoint(dev, i + USB_DIR_IN, true); + } } /** -- cgit v1.2.3 From 1dae423dd9b247b048eda00cb598c755e5933213 Mon Sep 17 00:00:00 2001 From: Martin Fuzzey Date: Fri, 1 Oct 2010 00:21:55 +0200 Subject: USB: introduce unmap_urb_setup_for_dma() Split unmap_urb_for_dma() to allow just the setup buffer to be unmapped. This allows HCDs to use PIO for the setup buffer if it is not suitable for DMA. Signed-off-by: Martin Fuzzey Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd.c | 18 +++++++++++++----- include/linux/usb/hcd.h | 1 + 2 files changed, 14 insertions(+), 5 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index cb2d894321da..61800f77dac8 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1263,10 +1263,8 @@ static void hcd_free_coherent(struct usb_bus *bus, dma_addr_t *dma_handle, *dma_handle = 0; } -void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) +void unmap_urb_setup_for_dma(struct usb_hcd *hcd, struct urb *urb) { - enum dma_data_direction dir; - if (urb->transfer_flags & URB_SETUP_MAP_SINGLE) dma_unmap_single(hcd->self.controller, urb->setup_dma, @@ -1279,6 +1277,17 @@ void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) sizeof(struct usb_ctrlrequest), DMA_TO_DEVICE); + /* Make it safe to call this routine more than once */ + urb->transfer_flags &= ~(URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL); +} +EXPORT_SYMBOL_GPL(unmap_urb_setup_for_dma); + +void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) +{ + enum dma_data_direction dir; + + unmap_urb_setup_for_dma(hcd, urb); + dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; if (urb->transfer_flags & URB_DMA_MAP_SG) dma_unmap_sg(hcd->self.controller, @@ -1303,8 +1312,7 @@ void unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) dir); /* Make it safe to call this routine more than once */ - urb->transfer_flags &= ~(URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL | - URB_DMA_MAP_SG | URB_DMA_MAP_PAGE | + urb->transfer_flags &= ~(URB_DMA_MAP_SG | URB_DMA_MAP_PAGE | URB_DMA_MAP_SINGLE | URB_MAP_LOCAL); } EXPORT_SYMBOL_GPL(unmap_urb_for_dma); diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index fe89f7c298aa..0b6e751ea0b1 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -329,6 +329,7 @@ extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_hcd_unlink_urb(struct urb *urb, int status); extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status); +extern void unmap_urb_setup_for_dma(struct usb_hcd *, struct urb *); extern void unmap_urb_for_dma(struct usb_hcd *, struct urb *); extern void usb_hcd_flush_endpoint(struct usb_device *udev, struct usb_host_endpoint *ep); -- cgit v1.2.3 From 7491f13367919d97525b73b1fd38801ac83aac06 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Mon, 27 Sep 2010 16:43:25 +0800 Subject: USB: do not print -ESHUTDOWN message if usb at otg device mode At otg device mode, the otg host resume should do no-op during system resume, otherwise, the otg device will be treated as a host for enumeration. So, the otg host driver returns -ESHUTDOWN if it detects the current usb mode is device mode. The host driver has to return -ESHUTDOWN, otherwise, the usb_hc_died will be called. Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index d7a4401ef019..c0e60fbcb048 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1337,7 +1337,7 @@ int usb_resume(struct device *dev, pm_message_t msg) /* Avoid PM error messages for devices disconnected while suspended * as we'll display regular disconnect messages just a bit later. */ - if (status == -ENODEV) + if (status == -ENODEV || status == -ESHUTDOWN) status = 0; return status; } -- cgit v1.2.3 From 7b3a766c7b9bce07875098cb68642df2b8f0b152 Mon Sep 17 00:00:00 2001 From: Rahul Ruikar Date: Thu, 7 Oct 2010 09:31:12 +0530 Subject: usb: core: endpoint: Fix error path In function usb_create_ep_devs() call put_device() when device_register() fails. Signed-off-by: Rahul Ruikar Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/endpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c index 3788e738e265..9da250563027 100644 --- a/drivers/usb/core/endpoint.c +++ b/drivers/usb/core/endpoint.c @@ -202,7 +202,7 @@ int usb_create_ep_devs(struct device *parent, return retval; error_register: - kfree(ep_dev); + put_device(&ep_dev->dev); exit: return retval; } -- cgit v1.2.3 From 0a2b8a0d1101179fdebc974a7c72b514aede9d9d Mon Sep 17 00:00:00 2001 From: matt mooney Date: Wed, 6 Oct 2010 19:03:26 -0700 Subject: usb: makefile cleanup For all modules, change -objs to -y; remove if-statements and replace with lists using the kbuild idiom; move flags to the top of the file; and fix alignment while trying to maintain the original scheme in each file. None of the dependencies are modified. Signed-off-by: matt mooney Acked-by: Sam Ravnborg Acked-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/atm/Makefile | 4 +-- drivers/usb/c67x00/Makefile | 6 ++-- drivers/usb/core/Makefile | 19 ++++------ drivers/usb/early/Makefile | 2 +- drivers/usb/gadget/Makefile | 39 ++++++++++---------- drivers/usb/host/Makefile | 19 +++++----- drivers/usb/host/whci/Kbuild | 2 +- drivers/usb/misc/Makefile | 44 +++++++++++------------ drivers/usb/misc/sisusbvga/Makefile | 3 +- drivers/usb/mon/Makefile | 2 +- drivers/usb/musb/Makefile | 71 +++++++++---------------------------- drivers/usb/otg/Makefile | 7 ++-- drivers/usb/serial/Makefile | 9 +++-- drivers/usb/storage/Makefile | 34 +++++++++--------- drivers/usb/wusbcore/Makefile | 17 ++++----- 15 files changed, 116 insertions(+), 162 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/atm/Makefile b/drivers/usb/atm/Makefile index d40a126e47a3..a5d792ec3ad5 100644 --- a/drivers/usb/atm/Makefile +++ b/drivers/usb/atm/Makefile @@ -2,10 +2,10 @@ # Makefile for USB ATM/xDSL drivers # +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG + obj-$(CONFIG_USB_CXACRU) += cxacru.o obj-$(CONFIG_USB_SPEEDTOUCH) += speedtch.o obj-$(CONFIG_USB_UEAGLEATM) += ueagle-atm.o obj-$(CONFIG_USB_ATM) += usbatm.o obj-$(CONFIG_USB_XUSBATM) += xusbatm.o - -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG diff --git a/drivers/usb/c67x00/Makefile b/drivers/usb/c67x00/Makefile index 868bc41b5980..b1218683c8ec 100644 --- a/drivers/usb/c67x00/Makefile +++ b/drivers/usb/c67x00/Makefile @@ -2,8 +2,8 @@ # Makefile for Cypress C67X00 USB Controller # -ccflags-$(CONFIG_USB_DEBUG) += -DDEBUG +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG -obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o +obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o -c67x00-objs := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o +c67x00-y := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index 17c8e2d2a07d..507a4e1b6360 100644 --- a/drivers/usb/core/Makefile +++ b/drivers/usb/core/Makefile @@ -2,18 +2,13 @@ # Makefile for USB Core files and filesystem # -usbcore-objs := usb.o hub.o hcd.o urb.o message.o driver.o \ - config.o file.o buffer.o sysfs.o endpoint.o \ - devio.o notify.o generic.o quirks.o devices.o - -ifeq ($(CONFIG_PCI),y) - usbcore-objs += hcd-pci.o -endif +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG -ifeq ($(CONFIG_USB_DEVICEFS),y) - usbcore-objs += inode.o -endif +usbcore-y := usb.o hub.o hcd.o urb.o message.o driver.o +usbcore-y += config.o file.o buffer.o sysfs.o endpoint.o +usbcore-y += devio.o notify.o generic.o quirks.o devices.o -obj-$(CONFIG_USB) += usbcore.o +usbcore-$(CONFIG_PCI) += hcd-pci.o +usbcore-$(CONFIG_USB_DEVICEFS) += inode.o -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG +obj-$(CONFIG_USB) += usbcore.o diff --git a/drivers/usb/early/Makefile b/drivers/usb/early/Makefile index dfedee8c45b6..24bbe519c737 100644 --- a/drivers/usb/early/Makefile +++ b/drivers/usb/early/Makefile @@ -2,4 +2,4 @@ # Makefile for early USB devices # -obj-$(CONFIG_EARLY_PRINTK_DBGP) += ehci-dbgp.o +obj-$(CONFIG_EARLY_PRINTK_DBGP) += ehci-dbgp.o diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index c68200536500..5780db42417b 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -1,7 +1,7 @@ # # USB peripheral controller drivers # -ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG +ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o obj-$(CONFIG_USB_NET2280) += net2280.o @@ -16,10 +16,8 @@ obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o obj-$(CONFIG_USB_AT91) += at91_udc.o obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o -fsl_usb2_udc-objs := fsl_udc_core.o -ifeq ($(CONFIG_ARCH_MXC),y) -fsl_usb2_udc-objs += fsl_mxc_udc.o -endif +fsl_usb2_udc-y := fsl_udc_core.o +fsl_usb2_udc-$(CONFIG_ARCH_MXC) += fsl_mxc_udc.o obj-$(CONFIG_USB_M66592) += m66592-udc.o obj-$(CONFIG_USB_R8A66597) += r8a66597-udc.o obj-$(CONFIG_USB_FSL_QE) += fsl_qe_udc.o @@ -30,21 +28,21 @@ obj-$(CONFIG_USB_LANGWELL) += langwell_udc.o # # USB gadget drivers # -g_zero-objs := zero.o -g_audio-objs := audio.o -g_ether-objs := ether.o -g_serial-objs := serial.o -g_midi-objs := gmidi.o -gadgetfs-objs := inode.o -g_file_storage-objs := file_storage.o -g_mass_storage-objs := mass_storage.o -g_printer-objs := printer.o -g_cdc-objs := cdc2.o -g_multi-objs := multi.o -g_hid-objs := hid.o -g_dbgp-objs := dbgp.o -g_nokia-objs := nokia.o -g_webcam-objs := webcam.o +g_zero-y := zero.o +g_audio-y := audio.o +g_ether-y := ether.o +g_serial-y := serial.o +g_midi-y := gmidi.o +gadgetfs-y := inode.o +g_file_storage-y := file_storage.o +g_mass_storage-y := mass_storage.o +g_printer-y := printer.o +g_cdc-y := cdc2.o +g_multi-y := multi.o +g_hid-y := hid.o +g_dbgp-y := dbgp.o +g_nokia-y := nokia.o +g_webcam-y := webcam.o obj-$(CONFIG_USB_ZERO) += g_zero.o obj-$(CONFIG_USB_AUDIO) += g_audio.o @@ -62,4 +60,3 @@ obj-$(CONFIG_USB_G_DBGP) += g_dbgp.o obj-$(CONFIG_USB_G_MULTI) += g_multi.o obj-$(CONFIG_USB_G_NOKIA) += g_nokia.o obj-$(CONFIG_USB_G_WEBCAM) += g_webcam.o - diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 19b3a30b1cdb..91c5a1bd1026 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -2,15 +2,17 @@ # Makefile for USB Host Controller Drivers # -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG -isp1760-objs := isp1760-hcd.o isp1760-if.o -fhci-objs := fhci-hcd.o fhci-hub.o fhci-q.o fhci-mem.o \ - fhci-tds.o fhci-sched.o -ifeq ($(CONFIG_FHCI_DEBUG),y) -fhci-objs += fhci-dbg.o -endif -xhci-hcd-objs := xhci.o xhci-mem.o xhci-pci.o xhci-ring.o xhci-hub.o xhci-dbg.o +isp1760-y := isp1760-hcd.o isp1760-if.o + +fhci-y := fhci-hcd.o fhci-hub.o fhci-q.o +fhci-y += fhci-mem.o fhci-tds.o fhci-sched.o + +fhci-$(CONFIG_FHCI_DEBUG) += fhci-dbg.o + +xhci-hcd-y := xhci.o xhci-mem.o xhci-pci.o +xhci-hcd-y += xhci-ring.o xhci-hub.o xhci-dbg.o obj-$(CONFIG_USB_WHCI_HCD) += whci/ @@ -32,4 +34,3 @@ obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-mph-dr-of.o - diff --git a/drivers/usb/host/whci/Kbuild b/drivers/usb/host/whci/Kbuild index 11e5040b8337..26df0138079e 100644 --- a/drivers/usb/host/whci/Kbuild +++ b/drivers/usb/host/whci/Kbuild @@ -3,7 +3,7 @@ obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o whci-hcd-y := \ asl.o \ debug.o \ - hcd.o \ + hcd.o \ hw.o \ init.o \ int.o \ diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index d2633c035626..796ce7ebccc8 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -3,27 +3,27 @@ # (the ones that don't fit into any other categories) # -obj-$(CONFIG_USB_ADUTUX) += adutux.o -obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o -obj-$(CONFIG_USB_CYPRESS_CY7C63)+= cypress_cy7c63.o -obj-$(CONFIG_USB_CYTHERM) += cytherm.o -obj-$(CONFIG_USB_EMI26) += emi26.o -obj-$(CONFIG_USB_EMI62) += emi62.o -obj-$(CONFIG_USB_FTDI_ELAN) += ftdi-elan.o -obj-$(CONFIG_USB_IDMOUSE) += idmouse.o -obj-$(CONFIG_USB_IOWARRIOR) += iowarrior.o -obj-$(CONFIG_USB_ISIGHTFW) += isight_firmware.o -obj-$(CONFIG_USB_LCD) += usblcd.o -obj-$(CONFIG_USB_LD) += ldusb.o -obj-$(CONFIG_USB_LED) += usbled.o -obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o -obj-$(CONFIG_USB_RIO500) += rio500.o -obj-$(CONFIG_USB_TEST) += usbtest.o -obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o -obj-$(CONFIG_USB_USS720) += uss720.o -obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o -obj-$(CONFIG_USB_YUREX) += yurex.o +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG -obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ +obj-$(CONFIG_USB_ADUTUX) += adutux.o +obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o +obj-$(CONFIG_USB_CYPRESS_CY7C63) += cypress_cy7c63.o +obj-$(CONFIG_USB_CYTHERM) += cytherm.o +obj-$(CONFIG_USB_EMI26) += emi26.o +obj-$(CONFIG_USB_EMI62) += emi62.o +obj-$(CONFIG_USB_FTDI_ELAN) += ftdi-elan.o +obj-$(CONFIG_USB_IDMOUSE) += idmouse.o +obj-$(CONFIG_USB_IOWARRIOR) += iowarrior.o +obj-$(CONFIG_USB_ISIGHTFW) += isight_firmware.o +obj-$(CONFIG_USB_LCD) += usblcd.o +obj-$(CONFIG_USB_LD) += ldusb.o +obj-$(CONFIG_USB_LED) += usbled.o +obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o +obj-$(CONFIG_USB_RIO500) += rio500.o +obj-$(CONFIG_USB_TEST) += usbtest.o +obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o +obj-$(CONFIG_USB_USS720) += uss720.o +obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o +obj-$(CONFIG_USB_YUREX) += yurex.o -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG +obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ diff --git a/drivers/usb/misc/sisusbvga/Makefile b/drivers/usb/misc/sisusbvga/Makefile index 7f934cfc906c..3142476ccc8e 100644 --- a/drivers/usb/misc/sisusbvga/Makefile +++ b/drivers/usb/misc/sisusbvga/Makefile @@ -4,5 +4,4 @@ obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga.o -sisusbvga-objs := sisusb.o sisusb_init.o sisusb_con.o - +sisusbvga-y := sisusb.o sisusb_init.o sisusb_con.o diff --git a/drivers/usb/mon/Makefile b/drivers/usb/mon/Makefile index 384b198faa7c..8ed24ab08698 100644 --- a/drivers/usb/mon/Makefile +++ b/drivers/usb/mon/Makefile @@ -2,6 +2,6 @@ # Makefile for USB monitor # -usbmon-objs := mon_main.o mon_stat.o mon_text.o mon_bin.o +usbmon-y := mon_main.o mon_stat.o mon_text.o mon_bin.o obj-$(CONFIG_USB_MON) += usbmon.o diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile index 16aaae28714d..ffc0e0525823 100644 --- a/drivers/usb/musb/Makefile +++ b/drivers/usb/musb/Makefile @@ -2,53 +2,23 @@ # for USB OTG silicon based on Mentor Graphics INVENTRA designs # -musb_hdrc-objs := musb_core.o - -obj-$(CONFIG_USB_MUSB_HDRC) += musb_hdrc.o - -ifeq ($(CONFIG_ARCH_DAVINCI_DMx),y) - musb_hdrc-objs += davinci.o -endif - -ifeq ($(CONFIG_ARCH_DAVINCI_DA8XX),y) - musb_hdrc-objs += da8xx.o -endif - -ifeq ($(CONFIG_USB_TUSB6010),y) - musb_hdrc-objs += tusb6010.o -endif - -ifeq ($(CONFIG_ARCH_OMAP2430),y) - musb_hdrc-objs += omap2430.o -endif - -ifeq ($(CONFIG_ARCH_OMAP3430),y) - musb_hdrc-objs += omap2430.o -endif - -ifeq ($(CONFIG_ARCH_OMAP4),y) - musb_hdrc-objs += omap2430.o -endif +ccflags-$(CONFIG_USB_MUSB_DEBUG) := -DDEBUG -ifeq ($(CONFIG_BF54x),y) - musb_hdrc-objs += blackfin.o -endif +obj-$(CONFIG_USB_MUSB_HDRC) += musb_hdrc.o -ifeq ($(CONFIG_BF52x),y) - musb_hdrc-objs += blackfin.o -endif +musb_hdrc-y := musb_core.o -ifeq ($(CONFIG_USB_GADGET_MUSB_HDRC),y) - musb_hdrc-objs += musb_gadget_ep0.o musb_gadget.o -endif - -ifeq ($(CONFIG_USB_MUSB_HDRC_HCD),y) - musb_hdrc-objs += musb_virthub.o musb_host.o -endif - -ifeq ($(CONFIG_DEBUG_FS),y) - musb_hdrc-objs += musb_debugfs.o -endif +musb_hdrc-$(CONFIG_ARCH_DAVINCI_DMx) += davinci.o +musb_hdrc-$(CONFIG_ARCH_DAVINCI_DA8XX) += da8xx.o +musb_hdrc-$(CONFIG_USB_TUSB6010) += tusb6010.o +musb_hdrc-$(CONFIG_ARCH_OMAP2430) += omap2430.o +musb_hdrc-$(CONFIG_ARCH_OMAP3430) += omap2430.o +musb_hdrc-$(CONFIG_ARCH_OMAP4) += omap2430.o +musb_hdrc-$(CONFIG_BF54x) += blackfin.o +musb_hdrc-$(CONFIG_BF52x) += blackfin.o +musb_hdrc-$(CONFIG_USB_GADGET_MUSB_HDRC) += musb_gadget_ep0.o musb_gadget.o +musb_hdrc-$(CONFIG_USB_MUSB_HDRC_HCD) += musb_virthub.o musb_host.o +musb_hdrc-$(CONFIG_DEBUG_FS) += musb_debugfs.o # the kconfig must guarantee that only one of the # possible I/O schemes will be enabled at a time ... @@ -58,24 +28,17 @@ endif ifneq ($(CONFIG_MUSB_PIO_ONLY),y) ifeq ($(CONFIG_USB_INVENTRA_DMA),y) - musb_hdrc-objs += musbhsdma.o + musb_hdrc-y += musbhsdma.o else ifeq ($(CONFIG_USB_TI_CPPI_DMA),y) - musb_hdrc-objs += cppi_dma.o + musb_hdrc-y += cppi_dma.o else ifeq ($(CONFIG_USB_TUSB_OMAP_DMA),y) - musb_hdrc-objs += tusb6010_omap.o + musb_hdrc-y += tusb6010_omap.o endif endif endif endif - - -################################################################################ - -# Debugging - -ccflags-$(CONFIG_USB_MUSB_DEBUG) := -DDEBUG diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile index b6609db3a849..66f1b83e4fa7 100644 --- a/drivers/usb/otg/Makefile +++ b/drivers/usb/otg/Makefile @@ -2,6 +2,9 @@ # OTG infrastructure and transceiver drivers # +ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG +ccflags-$(CONFIG_USB_GADGET_DEBUG) += -DDEBUG + # infrastructure obj-$(CONFIG_USB_OTG_UTILS) += otg.o @@ -12,7 +15,3 @@ obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o obj-$(CONFIG_USB_LANGWELL_OTG) += langwell_otg.o obj-$(CONFIG_NOP_USB_XCEIV) += nop-usb-xceiv.o obj-$(CONFIG_USB_ULPI) += ulpi.o - -ccflags-$(CONFIG_USB_DEBUG) += -DDEBUG -ccflags-$(CONFIG_USB_GADGET_DEBUG) += -DDEBUG - diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index cf41b6209c74..9a2117f2b06e 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -6,10 +6,10 @@ obj-$(CONFIG_USB_SERIAL) += usbserial.o -usbserial-obj-$(CONFIG_USB_SERIAL_CONSOLE) += console.o -usbserial-obj-$(CONFIG_USB_EZUSB) += ezusb.o +usbserial-y := usb-serial.o generic.o bus.o -usbserial-objs := usb-serial.o generic.o bus.o $(usbserial-obj-y) +usbserial-$(CONFIG_USB_SERIAL_CONSOLE) += console.o +usbserial-$(CONFIG_USB_EZUSB) += ezusb.o obj-$(CONFIG_USB_SERIAL_AIRCABLE) += aircable.o obj-$(CONFIG_USB_SERIAL_ARK3116) += ark3116.o @@ -59,6 +59,5 @@ obj-$(CONFIG_USB_SERIAL_TI) += ti_usb_3410_5052.o obj-$(CONFIG_USB_SERIAL_VISOR) += visor.o obj-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat.o obj-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda.o -obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL) += vivopay-serial.o +obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL) += vivopay-serial.o obj-$(CONFIG_USB_SERIAL_ZIO) += zio.o - diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile index 65dbf652487e..fcf14cdc4a04 100644 --- a/drivers/usb/storage/Makefile +++ b/drivers/usb/storage/Makefile @@ -5,21 +5,21 @@ # Rewritten to use lists instead of if-statements. # -ccflags-y := -Idrivers/scsi +ccflags-y := -Idrivers/scsi obj-$(CONFIG_USB_UAS) += uas.o obj-$(CONFIG_USB_STORAGE) += usb-storage.o -usb-storage-obj-$(CONFIG_USB_STORAGE_DEBUG) += debug.o +usb-storage-y := scsiglue.o protocol.o transport.o usb.o +usb-storage-y += initializers.o sierra_ms.o option_ms.o -usb-storage-objs := scsiglue.o protocol.o transport.o usb.o \ - initializers.o sierra_ms.o option_ms.o $(usb-storage-obj-y) +usb-storage-$(CONFIG_USB_STORAGE_DEBUG) += debug.o ifeq ($(CONFIG_USB_LIBUSUAL),) - usb-storage-objs += usual-tables.o + usb-storage-y += usual-tables.o else obj-$(CONFIG_USB) += usb-libusual.o - usb-libusual-objs := libusual.o usual-tables.o + usb-libusual-y := libusual.o usual-tables.o endif obj-$(CONFIG_USB_STORAGE_ALAUDA) += ums-alauda.o @@ -34,14 +34,14 @@ obj-$(CONFIG_USB_STORAGE_SDDR09) += ums-sddr09.o obj-$(CONFIG_USB_STORAGE_SDDR55) += ums-sddr55.o obj-$(CONFIG_USB_STORAGE_USBAT) += ums-usbat.o -ums-alauda-objs := alauda.o -ums-cypress-objs := cypress_atacb.o -ums-datafab-objs := datafab.o -ums-freecom-objs := freecom.o -ums-isd200-objs := isd200.o -ums-jumpshot-objs := jumpshot.o -ums-karma-objs := karma.o -ums-onetouch-objs := onetouch.o -ums-sddr09-objs := sddr09.o -ums-sddr55-objs := sddr55.o -ums-usbat-objs := shuttle_usbat.o +ums-alauda-y := alauda.o +ums-cypress-y := cypress_atacb.o +ums-datafab-y := datafab.o +ums-freecom-y := freecom.o +ums-isd200-y := isd200.o +ums-jumpshot-y := jumpshot.o +ums-karma-y := karma.o +ums-onetouch-y := onetouch.o +ums-sddr09-y := sddr09.o +ums-sddr55-y := sddr55.o +ums-usbat-y := shuttle_usbat.o diff --git a/drivers/usb/wusbcore/Makefile b/drivers/usb/wusbcore/Makefile index f0d8045c802e..b3bd313032b1 100644 --- a/drivers/usb/wusbcore/Makefile +++ b/drivers/usb/wusbcore/Makefile @@ -1,9 +1,11 @@ +ccflags-$(CONFIG_USB_WUSB_CBAF_DEBUG) := -DDEBUG + obj-$(CONFIG_USB_WUSB) += wusbcore.o obj-$(CONFIG_USB_HWA_HCD) += wusb-wa.o obj-$(CONFIG_USB_WUSB_CBAF) += wusb-cbaf.o -wusbcore-objs := \ +wusbcore-y := \ crypto.o \ devconnect.o \ dev-sysfs.o \ @@ -14,11 +16,10 @@ wusbcore-objs := \ security.o \ wusbhc.o -wusb-cbaf-objs := cbaf.o +wusb-cbaf-y := cbaf.o -wusb-wa-objs := wa-hc.o \ - wa-nep.o \ - wa-rpipe.o \ - wa-xfer.o - -ccflags-$(CONFIG_USB_WUSB_CBAF_DEBUG) := -DDEBUG +wusb-wa-y := \ + wa-hc.o \ + wa-nep.o \ + wa-rpipe.o \ + wa-xfer.o -- cgit v1.2.3 From c8d4af8e2af12cd4835ba5c4b54bdafe9deda71a Mon Sep 17 00:00:00 2001 From: Andiry Xu Date: Thu, 14 Oct 2010 07:22:51 -0700 Subject: USB: core: use kernel assigned address for devices under xHCI xHCI driver uses hardware assigned device address. This may cause device address conflict in certain cases. Use kernel assigned address for devices under xHCI. Store the xHC assigned address locally in xHCI driver. Signed-off-by: Andiry Xu Signed-off-by: Sarah Sharp --- drivers/usb/core/hub.c | 27 +++++++++++++-------------- drivers/usb/host/xhci.c | 8 ++++---- drivers/usb/host/xhci.h | 2 ++ 3 files changed, 19 insertions(+), 18 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5da546c4fd79..f07ab71859dd 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2594,16 +2594,14 @@ static int hub_set_address(struct usb_device *udev, int devnum) return 0; if (udev->state != USB_STATE_DEFAULT) return -EINVAL; - if (hcd->driver->address_device) { + if (hcd->driver->address_device) retval = hcd->driver->address_device(hcd, udev); - } else { + else retval = usb_control_msg(udev, usb_sndaddr0pipe(), USB_REQ_SET_ADDRESS, 0, devnum, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); - if (retval == 0) - update_address(udev, devnum); - } if (retval == 0) { + update_address(udev, devnum); /* Device now using proper address. */ usb_set_device_state(udev, USB_STATE_ADDRESS); usb_ep0_reinit(udev); @@ -3097,16 +3095,17 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, udev->speed = USB_SPEED_UNKNOWN; /* - * xHCI needs to issue an address device command later - * in the hub_port_init sequence for SS/HS/FS/LS devices. + * Set the address. + * Note xHCI needs to issue an address device command later + * in the hub_port_init sequence for SS/HS/FS/LS devices, + * and xHC will assign an address to the device. But use + * kernel assigned address here, to avoid any address conflict + * issue. */ - if (!(hcd->driver->flags & HCD_USB3)) { - /* set the address */ - choose_address(udev); - if (udev->devnum <= 0) { - status = -ENOTCONN; /* Don't retry */ - goto loop; - } + choose_address(udev); + if (udev->devnum <= 0) { + status = -ENOTCONN; /* Don't retry */ + goto loop; } /* reset (non-USB 3.0 devices) and get descriptor */ diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7928af5c91cb..caccecb7368e 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -2287,15 +2287,15 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) * address given back to us by the HC. */ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); - udev->devnum = (slot_ctx->dev_state & DEV_ADDR_MASK) + 1; + /* Use kernel assigned address for devices; store xHC assigned + * address locally. */ + virt_dev->address = (slot_ctx->dev_state & DEV_ADDR_MASK) + 1; /* Zero the input context control for later use */ ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx); ctrl_ctx->add_flags = 0; ctrl_ctx->drop_flags = 0; - xhci_dbg(xhci, "Device address = %d\n", udev->devnum); - /* XXX Meh, not sure if anyone else but choose_address uses this. */ - set_bit(udev->devnum, udev->bus->devmap.devicemap); + xhci_dbg(xhci, "Internal device address = %d\n", virt_dev->address); return 0; } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 490409f918f2..a7181b491e67 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -746,6 +746,8 @@ struct xhci_virt_device { /* Rings saved to ensure old alt settings can be re-instated */ struct xhci_ring **ring_cache; int num_rings_cached; + /* Store xHC assigned device address */ + int address; #define XHCI_MAX_RINGS_CACHED 31 struct xhci_virt_ep eps[31]; struct completion cmd_completion; -- cgit v1.2.3 From 85f0ff46960c2853fd1436a56798260eae91db86 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Thu, 14 Oct 2010 07:22:54 -0700 Subject: usb: Fix issue with USB 3.0 devices after system resume When the system suspends and a host controller's power is lost, the USB core attempts to revive any USB devices that had the persist_enabled flag set. For non-SuperSpeed devices, it will disable the port, and then set the udev->reset_resume flag. This will cause the USB core to reset the device, verify the device descriptors to make sure it's the same device, and re-install any non-default configurations or alternate interface settings. However, we can't disable SuperSpeed root hub ports because that turns off SuperSpeed terminations, which will inhibit any devices connecting at USB 3.0 speeds. (Plus external hubs don't allow SuperSpeed ports to be disabled.) Because of this logic in hub_activate(): /* We can forget about a "removed" device when there's a * physical disconnect or the connect status changes. */ if (!(portstatus & USB_PORT_STAT_CONNECTION) || (portchange & USB_PORT_STAT_C_CONNECTION)) clear_bit(port1, hub->removed_bits); if (!udev || udev->state == USB_STATE_NOTATTACHED) { /* Tell khubd to disconnect the device or * check for a new connection */ if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) set_bit(port1, hub->change_bits); } else if (portstatus & USB_PORT_STAT_ENABLE) { /* The power session apparently survived the resume. * If there was an overcurrent or suspend change * (i.e., remote wakeup request), have khubd * take care of it. */ if (portchange) set_bit(port1, hub->change_bits); } else if (udev->persist_enabled) { udev->reset_resume = 1; set_bit(port1, hub->change_bits); } else { /* The power session is gone; tell khubd */ usb_set_device_state(udev, USB_STATE_NOTATTACHED); set_bit(port1, hub->change_bits); } a SuperSpeed device after a resume with a loss of power will never get the reset_resume flag set. Instead the core will assume the power session survived and that the device still has the same address, configuration, and alternate interface settings. The xHCI host controller will have no knowledge of the device (since all xhci_virt_devices were destroyed when power loss was discovered, and xhci_discover_or_reset_device() has not been called), and all URBs to the device will fail. If the device driver responds by resetting the device, everything will continue smoothly. However, if lsusb is used before the device driver resets the device (or there is no driver), then all lsusb descriptor fetches will fail. The quick fix is to pretend the port is disabled in hub_activate(), by clearing the local variable. But I'm not sure what other parts of the hub driver need to be changed because they have assumptions about when ports will be disabled. Signed-off-by: Sarah Sharp Signed-off-by: Andiry Xu Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index f07ab71859dd..7f82c48a0bae 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -758,6 +758,9 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); portstatus &= ~USB_PORT_STAT_ENABLE; + } else { + /* Pretend that power was lost for USB3 devs */ + portstatus &= ~USB_PORT_STAT_ENABLE; } } -- cgit v1.2.3 From 56626a72a47bf3e50875d960d6b5f17b9bee0ab2 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 14 Oct 2010 15:25:21 -0400 Subject: USB: accept some invalid ep0-maxpacket values A few devices (such as the RCA VR5220 voice recorder) are so non-compliant with the USB spec that they have invalid maxpacket sizes for endpoint 0. Nevertheless, as long as we can safely use them, we may as well do so. This patch (as1432) softens our acceptance criterion by allowing high-speed devices to have ep0-maxpacket sizes other than 64. A warning is printed in the system log when this happens, and the existing error message is clarified. Signed-off-by: Alan Stern Reported-by: James Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/usb/core') diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 7f82c48a0bae..27115b45edc5 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2861,13 +2861,16 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, else i = udev->descriptor.bMaxPacketSize0; if (le16_to_cpu(udev->ep0.desc.wMaxPacketSize) != i) { - if (udev->speed != USB_SPEED_FULL || + if (udev->speed == USB_SPEED_LOW || !(i == 8 || i == 16 || i == 32 || i == 64)) { - dev_err(&udev->dev, "ep0 maxpacket = %d\n", i); + dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i); retval = -EMSGSIZE; goto fail; } - dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); + if (udev->speed == USB_SPEED_FULL) + dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); + else + dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); usb_ep0_reinit(udev); } -- cgit v1.2.3