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authorTomi Valkeinen <tomi.valkeinen@ideasonboard.com>2021-11-22 16:18:23 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2023-01-22 09:30:13 +0100
commit9a6b5bf4c1bba341eeb010f3ea8b5b48651f65f8 (patch)
tree4a17dcbb81eb75c0a0d2682166ff16780b395f5e /drivers/media/v4l2-core/v4l2-subdev.c
parentd6cc9c7c1a34dab83c94179ae91ab0582f2f9774 (diff)
media: add V4L2_SUBDEV_CAP_STREAMS
Add a subdev capability flag to expose to userspace if a subdev supports multiplexed streams. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-subdev.c')
-rw-r--r--drivers/media/v4l2-core/v4l2-subdev.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 24acb4aa0895..3adb186bb742 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -446,6 +446,7 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
struct v4l2_subdev *sd = vdev_to_v4l2_subdev(vdev);
struct v4l2_fh *vfh = file->private_data;
bool ro_subdev = test_bit(V4L2_FL_SUBDEV_RO_DEVNODE, &vdev->flags);
+ bool streams_subdev = sd->flags & V4L2_SUBDEV_FL_STREAMS;
int rval;
switch (cmd) {
@@ -454,7 +455,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
memset(cap->reserved, 0, sizeof(cap->reserved));
cap->version = LINUX_VERSION_CODE;
- cap->capabilities = ro_subdev ? V4L2_SUBDEV_CAP_RO_SUBDEV : 0;
+ cap->capabilities =
+ (ro_subdev ? V4L2_SUBDEV_CAP_RO_SUBDEV : 0) |
+ (streams_subdev ? V4L2_SUBDEV_CAP_STREAMS : 0);
return 0;
}