diff options
| author | Roger Quadros <rogerq@ti.com> | 2014-03-26 18:46:38 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-04-16 10:11:45 -0500 |
| commit | 9c1b70361e0b38e4acb8e62b54da66538cb77ff2 (patch) | |
| tree | e86b13bdffb038741c37c0c02d6aaba89d7bbfd9 /drivers/usb/gadget | |
| parent | 32702e96a9f76ea0e0a1d218310d2ac1adbd2907 (diff) | |
| download | linux-9c1b70361e0b38e4acb8e62b54da66538cb77ff2.tar.bz2 | |
usb: gadget: zero: Fix SuperSpeed enumeration for alternate setting 1
It was impossible to enumerate on a SuperSpeed (XHCI) host
with alternate setting = 1 due to the wrongly set 'bMaxBurst'
field in the SuperSpeed Endpoint Companion descriptor.
Testcase:
<host> modprobe -r usbtest; modprobe usbtest alt=1
<device> modprobe g_zero
plug device to SuperSpeed port on the host.
Without this patch the host always complains like so
"usb 12-2: Not enough bandwidth for new device state.
usb 12-2: Not enough bandwidth for altsetting 1"
Bug was introduced by commit cf9a08ae in v3.9
Fixes: cf9a08ae5aec (usb: gadget: convert source sink and loopback to
new function interface)
Cc: 3.9+ <stable@vger.kernel.org> # 3.9+
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/zero.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 9f170c53e3d9..134f354ede62 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -300,7 +300,7 @@ static int __init zero_bind(struct usb_composite_dev *cdev) ss_opts->isoc_interval = gzero_options.isoc_interval; ss_opts->isoc_maxpacket = gzero_options.isoc_maxpacket; ss_opts->isoc_mult = gzero_options.isoc_mult; - ss_opts->isoc_maxburst = gzero_options.isoc_maxpacket; + ss_opts->isoc_maxburst = gzero_options.isoc_maxburst; ss_opts->bulk_buflen = gzero_options.bulk_buflen; func_ss = usb_get_function(func_inst_ss); |