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[media] f_uvc: add v4l2_device and replace parent with v4l2_dev

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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.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-06-12 06:02:38 -03:00 committed by Mauro Carvalho Chehab
parent a28fbd04fa
commit b60f9aa1a9
2 changed files with 10 additions and 1 deletions
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9
drivers/usb/gadget/f_uvc.c
View File

@ -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);

2
drivers/usb/gadget/uvc.h
View File

@ -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;