From feccc30d90155bcbc937f87643182a43d25873eb Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 3 Mar 2008 15:15:59 -0500 Subject: USB: remove CONFIG_USB_PERSIST setting This patch (as1047) removes the USB_PERSIST Kconfig option, enabling it permanently. It also prevents the power/persist attribute from being created for hub devices; there's no point in having it since USB-PERSIST is always turned on for hubs. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/Kconfig | 25 ------------------------- 1 file changed, 25 deletions(-) (limited to 'drivers/usb/core/Kconfig') diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index a2b0aa48b8ea..c15621d64579 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -102,31 +102,6 @@ config USB_SUSPEND If you are unsure about this, say N here. -config USB_PERSIST - bool "USB device persistence during system suspend (DANGEROUS)" - depends on USB && PM && EXPERIMENTAL - default n - help - - If you say Y here and enable the "power/persist" attribute - for a USB device, the device's data structures will remain - persistent across system suspend, even if the USB bus loses - power. (This includes hibernation, also known as swsusp or - suspend-to-disk.) The devices will reappear as if by magic - when the system wakes up, with no need to unmount USB - filesystems, rmmod host-controller drivers, or do anything - else. - - WARNING: This option can be dangerous! - - If a USB device is replaced by another of the same type while - the system is asleep, there's a good chance the kernel won't - detect the change. Likewise if the media in a USB storage - device is replaced. When this happens it's almost certain to - cause data corruption and maybe even crash your system. - - If you are unsure, say N here. - config USB_OTG bool depends on USB && EXPERIMENTAL -- cgit v1.2.3 From 22552b286b44b8988e08fb74379507a9b32521b0 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Wed, 5 Mar 2008 23:17:38 -0800 Subject: USB: partial USB embedded host support This provides better support for USB "Embedded Host" functionality, which is a subset of the USB OTG options: * External hub support can be disabled; * USB peripherals not whitelisted in "otg_whitelist.h" will be rejected during enumeration. These options can allow some savings in software and support. Signed-off-by: Robin Getz Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/Kconfig | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers/usb/core/Kconfig') diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index c15621d64579..fee864c9e62d 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -111,14 +111,16 @@ config USB_OTG config USB_OTG_WHITELIST bool "Rely on OTG Targeted Peripherals List" - depends on USB_OTG - default y + depends on USB_OTG || EMBEDDED + default y if USB_OTG + default n if EMBEDDED help If you say Y here, the "otg_whitelist.h" file will be used as a product whitelist, so USB peripherals not listed there will be rejected during enumeration. This behavior is required by the USB OTG specification for all devices not on your product's - "Targeted Peripherals List". + "Targeted Peripherals List". "Embedded Hosts" are likewise + allowed to support only a limited number of peripherals. Otherwise, peripherals not listed there will only generate a warning and enumeration will continue. That's more like what @@ -127,9 +129,10 @@ config USB_OTG_WHITELIST config USB_OTG_BLACKLIST_HUB bool "Disable external hubs" - depends on USB_OTG + depends on USB_OTG || EMBEDDED help If you say Y here, then Linux will refuse to enumerate external hubs. OTG hosts are allowed to reduce hardware - and software costs by not supporting external hubs. + and software costs by not supporting external hubs. So + are "Emedded Hosts" that don't offer OTG support. -- cgit v1.2.3 From b67199967c777cf1aa42949f2bda00a7b937243e Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Sat, 8 Mar 2008 03:12:44 -0500 Subject: USB: Remove EXPERIMENTAL from dynamic USB minor allocation. Since this USB feature seems non-experimental, remove that dependency. Signed-off-by: Robert P. J. Day Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/usb/core/Kconfig') diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index fee864c9e62d..cc9f397e8398 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -76,8 +76,8 @@ config USB_DEVICE_CLASS NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0644" config USB_DYNAMIC_MINORS - bool "Dynamic USB minor allocation (EXPERIMENTAL)" - depends on USB && EXPERIMENTAL + bool "Dynamic USB minor allocation" + depends on USB help If you say Y here, the USB subsystem will use dynamic minor allocation for any device that uses the USB major number. -- cgit v1.2.3