92 static int uvc_buffer_prepare(struct vb2_buffer *vb)  in uvc_buffer_prepare()  argument
94 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);  in uvc_buffer_prepare()
95 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_prepare()
98 	if (vb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&  in uvc_buffer_prepare()
99 	    vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) {  in uvc_buffer_prepare()
109 	buf->mem = vb2_plane_vaddr(vb, 0);  in uvc_buffer_prepare()
110 	buf->length = vb2_plane_size(vb, 0);  in uvc_buffer_prepare()
111 	if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)  in uvc_buffer_prepare()
114 		buf->bytesused = vb2_get_plane_payload(vb, 0);  in uvc_buffer_prepare()
119 static void uvc_buffer_queue(struct vb2_buffer *vb)  in uvc_buffer_queue()  argument
121 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);  in uvc_buffer_queue()
122 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_queue()
134 		vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);  in uvc_buffer_queue()
140 static void uvc_buffer_finish(struct vb2_buffer *vb)  in uvc_buffer_finish()  argument
142 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);  in uvc_buffer_finish()
143 	struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);  in uvc_buffer_finish()
147 	if (vb->state == VB2_BUF_STATE_DONE)  in uvc_buffer_finish()