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.