linux-4.4.1/uvc_register_video() の変更点

• 追加された行はこの色です。
• 削除された行はこの色です。
• linux-4.4.1/uvc_register_video() へ行く。
• linux-4.4.1/uvc_register_video() の差分を削除

*参照元 [#s9674da0]
#backlinks

*説明 [#p4ea68e4]
-パス: [[linux-4.4.1/drivers/media/usb/uvc/uvc_driver.c]]

-FIXME: これは何？
--説明


**引数 [#i0692913]
-struct uvc_device *dev
--
--[[linux-4.4.1/uvc_device]]
-struct uvc_streaming *stream
--
--[[linux-4.4.1/uvc_streaming]]


**返り値 [#l861db66]
-int
--


**参考 [#i2d099e5]


*実装 [#g5434178]
 static int uvc_register_video(struct uvc_device *dev,
                 struct uvc_streaming *stream)
 {
         struct video_device *vdev = &stream->vdev;
         int ret;
 
-
--[[linux-4.4.1/video_device]]

         /* Initialize the video buffers queue. */
         ret = uvc_queue_init(&stream->queue, stream->type, !uvc_no_drop_param);
         if (ret)
                 return ret;
 
-
--[[linux-4.4.1/uvc_queue_init()]]

         /* Initialize the streaming interface with default streaming
          * parameters.
          */
         ret = uvc_video_init(stream);
         if (ret < 0) {
                 uvc_printk(KERN_ERR, "Failed to initialize the device "
                         "(%d).\n", ret);
                 return ret;
         }
 
-
--[[linux-4.4.1/uvc_video_init()]]

         uvc_debugfs_init_stream(stream);
 
-
--[[linux-4.4.1/uvc_debugfs_init_stream()]]

         /* Register the device with V4L. */
 
         /* We already hold a reference to dev->udev. The video device will be
          * unregistered before the reference is released, so we don't need to
          * get another one.
          */
         vdev->v4l2_dev = &dev->vdev;
         vdev->fops = &uvc_fops;
         vdev->ioctl_ops = &uvc_ioctl_ops;
         vdev->release = uvc_release;
         vdev->prio = &stream->chain->prio;
         if (stream->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
                 vdev->vfl_dir = VFL_DIR_TX;
         strlcpy(vdev->name, dev->name, sizeof vdev->name);
 
-
--[[linux-4.4.1/uvc_fops(global)]]
--[[linux-4.4.1/uvc_ioctl_ops(global)]]
--[[linux-4.4.1/uvc_release()]]
--[[linux-4.4.1/strlcpy()]]

         /* Set the driver data before calling video_register_device, otherwise
          * uvc_v4l2_open might race us.
          */
         video_set_drvdata(vdev, stream);
 
-
--[[linux-4.4.1/video_set_drvdata()]]

         ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
         if (ret < 0) {
                 uvc_printk(KERN_ERR, "Failed to register video device (%d).\n",
                            ret);
                 return ret;
         }
 
-
--[[linux-4.4.1/video_register_device()]]
--[[linux-4.4.1/uvc_printk()]]

         if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
                 stream->chain->caps |= V4L2_CAP_VIDEO_CAPTURE;
         else
                 stream->chain->caps |= V4L2_CAP_VIDEO_OUTPUT;
 
         atomic_inc(&dev->nstreams);
-
--[[linux-4.4.1/atomic_inc()]]

         return 0;
 }


*コメント [#l3dfc099]