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| 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¶
| January 2017 | Kernel Hackers Manual 4.8. |