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 4.8.                 January 2017                     REGISTER_SOUND_DSP(9)