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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-05-02 15:12:50 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-05-02 15:12:50 +0200 |
| commit | 79d2addf97397ee580b80f71343cf72b03da65a2 (patch) | |
| tree | 3659369523acd92f172a36132f559078d2800a74 /linux/drivers | |
| parent | 83d87c0c4e7849713db298cea21c964f85313f3b (diff) | |
| download | mediapointer-dvb-s2-79d2addf97397ee580b80f71343cf72b03da65a2.tar.gz mediapointer-dvb-s2-79d2addf97397ee580b80f71343cf72b03da65a2.tar.bz2 | |
v4l2: add v4l2_device_set_name()
From: Hans Verkuil <hverkuil@xs4all.nl>
Add a utility function that can be used to setup the v4l2_device's name
field in a standard manner.
Priority: normal
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'linux/drivers')
| -rw-r--r-- | linux/drivers/media/video/v4l2-device.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/linux/drivers/media/video/v4l2-device.c b/linux/drivers/media/video/v4l2-device.c index 2cb81c210..143f69614 100644 --- a/linux/drivers/media/video/v4l2-device.c +++ b/linux/drivers/media/video/v4l2-device.c @@ -50,6 +50,22 @@ 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) { |