AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

usb: gadget: check for streams only for SS udcs

Browse Source 
Currently the UASP gadget fails to bind on an UDC which does not provide
stream support. This is true for all udc in tree except for dummy and
dwc3 since they don't support SuperSpeed.
There is no need to test for the availability of stream support on those
UDCs because we will never even try to use them. I think it is sane to
assume that StreamSupport is always available on SuperSpeed since it is
one of the key features.
The host side will only allocate on SS so this part is also fine.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2012-01-11 21:42:44 +01:00 committed by Felipe Balbi
parent 118d63f7f8
commit c74c930082
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/gadget/epautoconf.c
View File

@ -126,7 +126,7 @@ ep_matches (
* descriptor and see if the EP matches it
*/
if (usb_endpoint_xfer_bulk(desc)) {
if (ep_comp) {
if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
num_req_streams = ep_comp->bmAttributes & 0x1f;
if (num_req_streams > ep->max_streams)
return 0;