703 			    void *priv, struct v4l2_buffer *vb)  in vidioc_querybuf()  argument
710 	if (vb->index >= usbvision->num_frames)  in vidioc_querybuf()
713 	vb->flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;  in vidioc_querybuf()
714 	frame = &usbvision->frame[vb->index];  in vidioc_querybuf()
716 		vb->flags |= V4L2_BUF_FLAG_QUEUED;  in vidioc_querybuf()
718 		vb->flags |= V4L2_BUF_FLAG_DONE;  in vidioc_querybuf()
720 		vb->flags |= V4L2_BUF_FLAG_MAPPED;  in vidioc_querybuf()
721 	vb->memory = V4L2_MEMORY_MMAP;  in vidioc_querybuf()
723 	vb->m.offset = vb->index * PAGE_ALIGN(usbvision->max_frame_size);  in vidioc_querybuf()
725 	vb->memory = V4L2_MEMORY_MMAP;  in vidioc_querybuf()
726 	vb->field = V4L2_FIELD_NONE;  in vidioc_querybuf()
727 	vb->length = usbvision->curwidth *  in vidioc_querybuf()
730 	vb->timestamp = usbvision->frame[vb->index].timestamp;  in vidioc_querybuf()
731 	vb->sequence = usbvision->frame[vb->index].sequence;  in vidioc_querybuf()
735 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *vb)  in vidioc_qbuf()  argument
742 	if (vb->index >= usbvision->num_frames)  in vidioc_qbuf()
745 	frame = &usbvision->frame[vb->index];  in vidioc_qbuf()
755 	vb->flags &= ~V4L2_BUF_FLAG_DONE;  in vidioc_qbuf()
761 	list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);  in vidioc_qbuf()
767 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *vb)  in vidioc_dqbuf()  argument
792 	vb->memory = V4L2_MEMORY_MMAP;  in vidioc_dqbuf()
793 	vb->flags = V4L2_BUF_FLAG_MAPPED |  in vidioc_dqbuf()
797 	vb->index = f->index;  in vidioc_dqbuf()
798 	vb->sequence = f->sequence;  in vidioc_dqbuf()
799 	vb->timestamp = f->timestamp;  in vidioc_dqbuf()
800 	vb->field = V4L2_FIELD_NONE;  in vidioc_dqbuf()
801 	vb->bytesused = f->scanlength;  in vidioc_dqbuf()