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usb: gadget: function: uvc: manage our video control endpoint

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just like any other endpoint, we must enable/disable
our video control endpoint based on calls to our
->set_alt() method.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2014-09-29 13:41:04 -05:00
parent 52ec49a5e5
commit 62e370785c
1 changed files with 13 additions and 0 deletions
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13
drivers/usb/gadget/function/f_uvc.c
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@ -297,6 +297,19 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
if (alt)
return -EINVAL;
if (uvc->control_ep->driver_data) {
INFO(cdev, "reset UVC Control\n");
usb_ep_disable(uvc->control_ep);
uvc->control_ep->driver_data = NULL;
}
if (!uvc->control_ep->desc)
if (config_ep_by_speed(cdev->gadget, f, uvc->control_ep))
return -EINVAL;
usb_ep_enable(uvc->control_ep);
uvc->control_ep->driver_data = uvc;
if (uvc->state == UVC_STATE_DISCONNECTED) {
memset(&v4l2_event, 0, sizeof(v4l2_event));
v4l2_event.type = UVC_EVENT_CONNECT;