From: Hans Verkuil <hans.verk...@cisco.com>
This driver did not yet support struct v4l2_device, so add it. This
make it possible to replace the deprecated parent field with the
v4l2_dev field, allowing the eventual removal of the parent field.
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/usb/gadget/f_uvc.c | 9 ++++++++-
drivers/usb/gadget/uvc.h | 2 ++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c
index 38dcedd..1d06567 100644
--- a/drivers/usb/gadget/f_uvc.c
+++ b/drivers/usb/gadget/f_uvc.c
@@ -413,7 +413,7 @@ uvc_register_video(struct uvc_device *uvc)
if (video == NULL)
return -ENOMEM;
- video->parent = &cdev->gadget->dev;
+ video->v4l2_dev = &uvc->v4l2_dev;
video->fops = &uvc_v4l2_fops;
video->release = video_device_release;
strlcpy(video->name, cdev->gadget->name, sizeof(video->name));
@@ -570,6 +570,7 @@ uvc_function_unbind(struct usb_configuration *c, struct
usb_function *f)
INFO(cdev, "uvc_function_unbind\n");
video_unregister_device(uvc->vdev);
+ v4l2_device_unregister(&uvc->v4l2_dev);
uvc->control_ep->driver_data = NULL;
uvc->video.ep->driver_data = NULL;
@@ -697,6 +698,11 @@ uvc_function_bind(struct usb_configuration *c, struct
usb_function *f)
if ((ret = usb_function_deactivate(f)) < 0)
goto error;
+ if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
+ printk(KERN_INFO "v4l2_device_register failed\n");
+ goto error;
+ }
+
/* Initialise video. */
ret = uvc_video_init(&uvc->video);
if (ret < 0)
@@ -712,6 +718,7 @@ uvc_function_bind(struct usb_configuration *c, struct
usb_function *f)
return 0;
error:
+ v4l2_device_unregister(&uvc->v4l2_dev);
if (uvc->vdev)
video_device_release(uvc->vdev);
diff --git a/drivers/usb/gadget/uvc.h b/drivers/usb/gadget/uvc.h
index 817e9e1..7a9111d 100644
--- a/drivers/usb/gadget/uvc.h
+++ b/drivers/usb/gadget/uvc.h
@@ -57,6 +57,7 @@ struct uvc_event
#include <linux/videodev2.h>
#include <linux/version.h>
#include <media/v4l2-fh.h>
+#include <media/v4l2-device.h>
#include "uvc_queue.h"
@@ -145,6 +146,7 @@ enum uvc_state
struct uvc_device
{
struct video_device *vdev;
+ struct v4l2_device v4l2_dev;
enum uvc_state state;
struct usb_function func;
struct uvc_video video;
--
1.7.10.4
--
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