15.2. Files

All the relevant code lives in /usr/src/sys/dev/sound/, except for the public ioctl interface definitions, found in /usr/src/sys/sys/soundcard.h

Under /usr/src/sys/dev/sound/, the pcm/ directory holds the central code, while the pci/, isa/ and usb/ directories have the drivers for PCI and ISA boards, and for USB audio devices.

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