4.4 gadget uvc 不能用

各位有用uvc gadget 吗？我这边跑不起来



[   73.505524] configfs-gadget gadget: uvc_function_set_alt(1, 1)
[   73.506072] configfs-gadget gadget: reset UVC
setting commit control, length = 26
UVC: Setting format to: YUYV 640x480
UVC: 4 buffers allocated.
[   73.529826] use of bytesused == 0 is deprecated and will be removed in the future,
[   73.530571] use the actual size instead.
UVC: Starting video stream.
4: DeQueued buffer at UVC side = 0
[   73.616150] VS request completed with status -104.
[   73.616758] VS request completed with status -104.
[   73.617259] VS request completed with status -104.
[   73.617700] VS request completed with status -104.