GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 07:12:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

usb: gadget: encapsulate endpoint claiming mechanism

Browse source 
So far it was necessary for usb functions to set ep->driver_data in
endpoint obtained from autoconfig to non-null value, to indicate that
endpoint is claimed by function (in autoconfig it was checked if endpoint
has set this field to non-null value, and if it has, it was assumed that
it is claimed). It could cause bugs because if some function doesn't
set this field autoconfig could return the same endpoint more than one
time.

To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
any additional actions to mark endpoint obtained from autoconfig as claimed.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Robert Baldyga 2015-07-31 16:00:13 +02:00 • committed by Felipe Balbi
parent 0f4315a8f1
commit cc476b42a3
2 changed files with 7 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/usb/gadget.h
View file

@ -173,6 +173,7 @@ struct usb_ep {
const char *name;
const struct usb_ep_ops *ops;
struct list_head ep_list;
bool claimed;
unsigned maxpacket:16;
unsigned maxpacket_limit:16;
unsigned max_streams:16;