The VIDIOC_LOG_STATUS ioctl allows to dump current status of a driver
to the kernel log. Currently this ioctl is only available at video
device nodes and the subdevs rely on the host driver to expose their
core.log_status operation to user space.
This patch adds VIDIOC_LOG_STATUS support at the sub-device nodes,
for standalone subdevs that expose their own /dev entry.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/v4l2-subdev.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
index 179e20e..4fe1e7a 100644
--- a/drivers/media/video/v4l2-subdev.c
+++ b/drivers/media/video/v4l2-subdev.c
@@ -192,6 +192,9 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
return v4l2_subdev_call(sd, core, s_register, p);
}
#endif
+ case VIDIOC_LOG_STATUS:
+ return v4l2_subdev_call(sd, core, log_status);
+
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
case VIDIOC_SUBDEV_G_FMT: {
struct v4l2_subdev_format *format = arg;
--
1.7.7.1
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