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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-12-23 07:35:17 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:39:35 -0200 |
| commit | 9bea3514dd4a44490b53cc52498b2967e48056dd (patch) | |
| tree | 5aa2003666cd073a1aec46145fdf99147d35be28 /include | |
| parent | dc93a70cc7f92e1dbaf29fa7dfd914b0f618fb31 (diff) | |
| download | lwn-9bea3514dd4a44490b53cc52498b2967e48056dd.tar.gz lwn-9bea3514dd4a44490b53cc52498b2967e48056dd.zip | |
V4L/DVB (9974): v4l2-dev: allow drivers to pass v4l2_device as parent
Drivers that use v4l2_device can set that as parent pointer in the v4l2_dev
field instead of using the struct device parent field.
This allows v4l2-dev.c to check whether this driver is v4l2_device based,
and if so then it can offer additional services.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/media/v4l2-dev.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index e0d72d2c6f0e..0a88d1d17d30 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -25,6 +25,7 @@ #define VFL_TYPE_MAX 4 struct v4l2_ioctl_callbacks; +struct v4l2_device; /* Flag to mark the video_device struct as unregistered. Drivers can set this flag if they want to block all future @@ -45,7 +46,10 @@ struct video_device /* sysfs */ struct device dev; /* v4l device */ struct cdev *cdev; /* character device */ + + /* Set either parent or v4l2_dev if your driver uses v4l2_device */ struct device *parent; /* device parent */ + struct v4l2_device *v4l2_dev; /* v4l2_device parent */ /* device info */ char name[32]; |