diff options
| author | Roger Quadros <rogerq@ti.com> | 2014-03-26 18:46:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-06 07:59:30 -0700 |
| commit | e880a6df5538989f764a851565802124b654860f (patch) | |
| tree | 0a2952d2e560431ee663e8820f0cde586fe4cd4b /drivers | |
| parent | f2ae820563a9d76626c09a05e5887490a96cb3c2 (diff) | |
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')
| -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); |