From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Support the MEDIA_IOC_DEVICE_INFO ioctl for entities.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-subdev.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 50ada27..ae7480b 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -201,6 +201,18 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
break;
}
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ case MEDIA_IOC_DEVICE_INFO: {
+ struct media_device_info *info = arg;
+
+ if (sd->entity.parent == NULL)
+ return -ENOTTY;
+ media_device_fill_info(sd->entity.parent, info);
+ info->entity_id = sd->entity.id;
+ return 0;
+ }
+#endif
+
case VIDIOC_QUERYCTRL:
return v4l2_queryctrl(vfh->ctrl_handler, arg);
--
2.1.4
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