Subdevice nodes don't implement VIDIOC_QUERYCAP. This check doesn't allow any operations on v42-subdev nodes, such as setting EDID. Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> --- utils/v4l2-ctl/v4l2-ctl.cpp | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/utils/v4l2-ctl/v4l2-ctl.cpp b/utils/v4l2-ctl/v4l2-ctl.cpp index b340af7..211372b 100644 --- a/utils/v4l2-ctl/v4l2-ctl.cpp +++ b/utils/v4l2-ctl/v4l2-ctl.cpp @@ -1149,10 +1149,7 @@ int main(int argc, char **argv) } verbose = options[OptVerbose]; - if (doioctl(fd, VIDIOC_QUERYCAP, &vcap)) { - fprintf(stderr, "%s: not a v4l2 node\n", device); - exit(1); - } + doioctl(fd, VIDIOC_QUERYCAP, &vcap); capabilities = vcap.capabilities; if (capabilities & V4L2_CAP_DEVICE_CAPS) capabilities = vcap.device_caps; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html