centos man page for register_sound_dsp

REGISTER_SOUND_DSP(9)						   Sound Devices					     REGISTER_SOUND_DSP(9)

NAME
       register_sound_dsp - register a DSP device

SYNOPSIS
       int register_sound_dsp(const struct file_operations * fops, int dev);

ARGUMENTS
       fops
	   File operations for the driver

       dev
	   Unit number to allocate

DESCRIPTION
       Allocate a DSP device. Unit is the number of the DSP requested. Pass -1 to request the next free DSP unit.

       This function allocates both the audio and dsp device entries together and will always allocate them as a matching pair - eg dsp3/audio3

RETURN
       On success, the allocated number is returned. On failure, a negative error code is returned.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     REGISTER_SOUND_DSP(9)