diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-05-02 10:12:50 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:20:50 -0300 |
| commit | 102e78136446faca7d7d241b628c5bd0e0d61d5d (patch) | |
| tree | 17f26a5fc1aa4bab59d38a80c2684af21e37d53e /drivers/media | |
| parent | 416a7aa88300601d6630736836f9798c4079bc16 (diff) | |
V4L/DVB (11671): v4l2: add v4l2_device_set_name()
Add a utility function that can be used to setup the v4l2_device's name
field in a standard manner.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/v4l2-device.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c index 94aa485ade52..ffb425f7c24c 100644 --- a/drivers/media/video/v4l2-device.c +++ b/drivers/media/video/v4l2-device.c @@ -49,6 +49,22 @@ int v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev) } EXPORT_SYMBOL_GPL(v4l2_device_register); +int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename, + atomic_t *instance) +{ + int num = atomic_inc_return(instance) - 1; + int len = strlen(basename); + + if (basename[len - 1] >= '0' && basename[len - 1] <= '9') + snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), + "%s-%d", basename, num); + else + snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), + "%s%d", basename, num); + return num; +} +EXPORT_SYMBOL_GPL(v4l2_device_set_name); + void v4l2_device_disconnect(struct v4l2_device *v4l2_dev) { if (v4l2_dev->dev) { |