760 			    void *priv, struct v4l2_buffer *vb)  in vidioc_querybuf()  argument
767 	if (vb->index >= usbvision->num_frames)  in vidioc_querybuf()
770 	vb->flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;  in vidioc_querybuf()
771 	frame = &usbvision->frame[vb->index];  in vidioc_querybuf()
773 		vb->flags |= V4L2_BUF_FLAG_QUEUED;  in vidioc_querybuf()
775 		vb->flags |= V4L2_BUF_FLAG_DONE;  in vidioc_querybuf()
777 		vb->flags |= V4L2_BUF_FLAG_MAPPED;  in vidioc_querybuf()
778 	vb->memory = V4L2_MEMORY_MMAP;  in vidioc_querybuf()
780 	vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size);  in vidioc_querybuf()
782 	vb->memory = V4L2_MEMORY_MMAP;  in vidioc_querybuf()
783 	vb->field = V4L2_FIELD_NONE;  in vidioc_querybuf()
784 	vb->length = usbvision->curwidth *  in vidioc_querybuf()
787 	vb->timestamp = usbvision->frame[vb->index].timestamp;  in vidioc_querybuf()
788 	vb->sequence = usbvision->frame[vb->index].sequence;  in vidioc_querybuf()
792 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb)  in vidioc_qbuf()  argument
799 	if (vb->index >= usbvision->num_frames)  in vidioc_qbuf()
802 	frame = &usbvision->frame[vb->index];  in vidioc_qbuf()
812 	vb->flags &= ~V4L2_BUF_FLAG_DONE;  in vidioc_qbuf()
818 	list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);  in vidioc_qbuf()
824 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb)  in vidioc_dqbuf()  argument
849 	vb->memory = V4L2_MEMORY_MMAP;  in vidioc_dqbuf()
850 	vb->flags = V4L2_BUF_FLAG_MAPPED |  in vidioc_dqbuf()
854 	vb->index = f->index;  in vidioc_dqbuf()
855 	vb->sequence = f->sequence;  in vidioc_dqbuf()
856 	vb->timestamp = f->timestamp;  in vidioc_dqbuf()
857 	vb->field = V4L2_FIELD_NONE;  in vidioc_dqbuf()
858 	vb->bytesused = f->scanlength;  in vidioc_dqbuf()