Rather than checking which device type it is, just check the STREAMING cap since that indicates support for streaming ioctls. Some drivers only support READWRITE (typically MPEG encoders). Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> --- drivers/media/v4l2-core/v4l2-dev.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index 397d553177fa..f81279492682 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -556,6 +556,7 @@ static void determine_valid_ioctls(struct video_device *vdev) bool is_rx = vdev->vfl_dir != VFL_DIR_TX; bool is_tx = vdev->vfl_dir != VFL_DIR_RX; bool is_io_mc = vdev->device_caps & V4L2_CAP_IO_MC; + bool has_streaming = vdev->device_caps & V4L2_CAP_STREAMING; bitmap_zero(valid_ioctls, BASE_VIDIOC_PRIVATE); @@ -708,8 +709,8 @@ static void determine_valid_ioctls(struct video_device *vdev) SET_VALID_IOCTL(ops, VIDIOC_TRY_FMT, vidioc_try_fmt_sdr_out); } - if (is_vid || is_vbi || is_sdr || is_tch || is_meta) { - /* ioctls valid for video, vbi, sdr, touch and metadata */ + if (has_streaming) { + /* ioctls valid for streaming I/O */ SET_VALID_IOCTL(ops, VIDIOC_REQBUFS, vidioc_reqbufs); SET_VALID_IOCTL(ops, VIDIOC_QUERYBUF, vidioc_querybuf); SET_VALID_IOCTL(ops, VIDIOC_QBUF, vidioc_qbuf); -- 2.39.0