diff options
| author | Felipe Balbi <balbi@ti.com> | 2014-09-29 13:41:04 -0500 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-10-20 15:58:48 -0500 |
| commit | 62e370785cb337981999ac7ec364e22ffb6c2cd3 (patch) | |
| tree | 01f4288bf675cf7155d395c05dcf4e91ccafc62d /drivers/usb/gadget/function/f_uvc.c | |
| parent | 52ec49a5e56a27c5b6f8217708783eff39f24c16 (diff) | |
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: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/function/f_uvc.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_uvc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 4138ad5adb7..413a09f366c 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -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; |