video_register_device — register video4linux devices
int video_register_device (struct video_device * vfd, int type, int nr);
vfdvideo device structure we want to register
typetype of device to register
nrwhich device number (0 == /dev/video0, 1 == /dev/video1, ... -1 == first free)
The registration code assigns minor numbers based on the type
requested. -ENFILE is returned in all the device slots for this
category are full. If not then the minor field is set and the
driver initialize function is called (if non NULL).
Zero is returned on success.
Valid types are
VFL_TYPE_GRABBER - A frame grabber
VFL_TYPE_VTX - A teletext device
VFL_TYPE_VBI - Vertical blank data (undecoded)
VFL_TYPE_RADIO - A radio card