From 79d2addf97397ee580b80f71343cf72b03da65a2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 2 May 2009 15:12:50 +0200 Subject: v4l2: add v4l2_device_set_name() From: Hans Verkuil 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 Signed-off-by: Mauro Carvalho Chehab --- linux/Documentation/video4linux/v4l2-framework.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'linux/Documentation') diff --git a/linux/Documentation/video4linux/v4l2-framework.txt b/linux/Documentation/video4linux/v4l2-framework.txt index 854808b67..d54c1e4c6 100644 --- a/linux/Documentation/video4linux/v4l2-framework.txt +++ b/linux/Documentation/video4linux/v4l2-framework.txt @@ -89,6 +89,11 @@ from dev (driver name followed by the bus_id, to be precise). If you set it up before calling v4l2_device_register then it will be untouched. If dev is NULL, then you *must* setup v4l2_dev->name before calling v4l2_device_register. +You can use v4l2_device_set_name() to set the name based on a driver name and +a driver-global atomic_t instance. This will generate names like ivtv0, ivtv1, +etc. If the name ends with a digit, then it will insert a dash: cx18-0, +cx18-1, etc. This function returns the instance number. + The first 'dev' argument is normally the struct device pointer of a pci_dev, usb_interface or platform_device. It is rare for dev to be NULL, but it happens with ISA devices or when one device creates multiple PCI devices, thus making -- cgit v1.2.3