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| author | Roger Quadros <rogerq@ti.com> | 2014-03-26 18:46:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-06 07:55:30 -0700 |
| commit | 261313c0d8de2c4533cfafaa0571dc88b5fb62d7 (patch) | |
| tree | dc7191edfd8344bfc653e11d45cfdd2fe88ab71e /drivers/usb/host/xhci-pci.c | |
| parent | fc363768acb132a959ccf86fa2ea303862113c07 (diff) | |
| download | linux-3.10-261313c0d8de2c4533cfafaa0571dc88b5fb62d7.tar.gz linux-3.10-261313c0d8de2c4533cfafaa0571dc88b5fb62d7.tar.bz2 linux-3.10-261313c0d8de2c4533cfafaa0571dc88b5fb62d7.zip | |
usb: gadget: zero: Fix SuperSpeed enumeration for alternate setting 1
commit 9c1b70361e0b38e4acb8e62b54da66538cb77ff2 upstream.
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)
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
0 files changed, 0 insertions, 0 deletions