forked from luck/tmp_suning_uos_patched
[media] media: Documentation: remove V4L2_FL_USE_FH_PRIO flag
The V4L2_FL_USE_FH_PRIO has been removed from the code, now remove it from the documentation. Signed-off-by: Ramakrishnan Muthukrishnan <ramakrmu@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
parent
dc3094a713
commit
ff792c85e6
|
@ -675,11 +675,6 @@ You should also set these fields:
|
|||
video_device is initialized you *do* know which parent PCI device to use and
|
||||
so you set dev_device to the correct PCI device.
|
||||
|
||||
- flags: optional. Set to V4L2_FL_USE_FH_PRIO if you want to let the framework
|
||||
handle the VIDIOC_G/S_PRIORITY ioctls. This requires that you use struct
|
||||
v4l2_fh. Eventually this flag will disappear once all drivers use the core
|
||||
priority handling. But for now it has to be set explicitly.
|
||||
|
||||
If you use v4l2_ioctl_ops, then you should set .unlocked_ioctl to video_ioctl2
|
||||
in your v4l2_file_operations struct.
|
||||
|
||||
|
@ -909,8 +904,7 @@ struct v4l2_fh
|
|||
|
||||
struct v4l2_fh provides a way to easily keep file handle specific data
|
||||
that is used by the V4L2 framework. New drivers must use struct v4l2_fh
|
||||
since it is also used to implement priority handling (VIDIOC_G/S_PRIORITY)
|
||||
if the video_device flag V4L2_FL_USE_FH_PRIO is also set.
|
||||
since it is also used to implement priority handling (VIDIOC_G/S_PRIORITY).
|
||||
|
||||
The users of v4l2_fh (in the V4L2 framework, not the driver) know
|
||||
whether a driver uses v4l2_fh as its file->private_data pointer by
|
||||
|
|
|
@ -883,11 +883,6 @@ static int skeleton_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|||
vdev->v4l2_dev = &skel->v4l2_dev;
|
||||
/* Supported SDTV standards, if any */
|
||||
vdev->tvnorms = SKEL_TVNORMS;
|
||||
/* If this bit is set, then the v4l2 core will provide the support
|
||||
* for the VIDIOC_G/S_PRIORITY ioctls. This flag will eventually
|
||||
* go away once all drivers have been converted to use struct v4l2_fh.
|
||||
*/
|
||||
set_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags);
|
||||
video_set_drvdata(vdev, skel);
|
||||
|
||||
ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
|
||||
|
|
|
@ -580,11 +580,6 @@ release()回调必须被设置,且在最后一个 video_device 用户退出之
|
|||
v4l2_device 无法与特定的 PCI 设备关联,所有没有设置父设备。但当
|
||||
video_device 配置后,就知道使用哪个父 PCI 设备了。
|
||||
|
||||
- flags:可选。如果你要让框架处理设置 VIDIOC_G/S_PRIORITY ioctls,
|
||||
请设置 V4L2_FL_USE_FH_PRIO。这要求你使用 v4l2_fh 结构体。
|
||||
一旦所有驱动使用了核心的优先级处理,最终这个标志将消失。但现在它
|
||||
必须被显式设置。
|
||||
|
||||
如果你使用 v4l2_ioctl_ops,则应该在 v4l2_file_operations 结构体中
|
||||
设置 .unlocked_ioctl 指向 video_ioctl2。
|
||||
|
||||
|
@ -789,7 +784,7 @@ v4l2_fh 结构体
|
|||
-------------
|
||||
|
||||
v4l2_fh 结构体提供一个保存用于 V4L2 框架的文件句柄特定数据的简单方法。
|
||||
如果 video_device 的 flag 设置了 V4L2_FL_USE_FH_PRIO 标志,新驱动
|
||||
如果 video_device 标志,新驱动
|
||||
必须使用 v4l2_fh 结构体,因为它也用于实现优先级处理(VIDIOC_G/S_PRIORITY)。
|
||||
|
||||
v4l2_fh 的用户(位于 V4l2 框架中,并非驱动)可通过测试
|
||||
|
|
Loading…
Reference in New Issue
Block a user