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usb: gadget: add 'ep_match' callback to usb_gadget_ops

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Add callback that is called by epautoconf to allow UDC driver match the
best endpoint for specific descriptor. It's intended to supply mechanism
which allows to get rid of chip-specific endpoint matching code from
epautoconf.

If gadget has set 'ep_match' callback we prefer to call it first, and
if it fails to find matching endpoint, then we try to use default matching
algorithm.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Robert Baldyga
2015-08-06 14:11:10 +02:00
committed by Felipe Balbi
parent 26bf956aa9
commit 596c154d62
2 changed files with 9 additions and 0 deletions
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3
include/linux/usb/gadget.h
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@@ -534,6 +534,9 @@ struct usb_gadget_ops {
int (*udc_start)(struct usb_gadget *,
struct usb_gadget_driver *);
int (*udc_stop)(struct usb_gadget *);
struct usb_ep *(*match_ep)(struct usb_gadget *,
struct usb_endpoint_descriptor *,
struct usb_ss_ep_comp_descriptor *);
};
/**