NAME
register_sound_mixer - register a mixer device
SYNOPSIS
int register_sound_mixer (struct file_operations * fops, int dev);
ARGUMENTS
fops File operations for the driver
dev Unit number to allocate
DESCRIPTION
Allocate a mixer device. Unit is the number of the mixer requested.
Pass -1 to request the next free mixer unit. On success the allocated
number is returned, on failure a negative error code is returned.