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Commit 62e37078 authored by Felipe Balbi's avatar Felipe Balbi
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usb: gadget: function: uvc: manage our video control endpoint 



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

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 52ec49a5

drivers/usb/gadget/function/f_uvc.c

+13 −0
Original line number Diff line number Diff line
@@ -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;