| Source | Explanation |
| OSS_GETVERSION | Returns the OSS API version number of current system |
| SNDCTL_AUDIOINFO | Return information about an audio device |
| SNDCTL_CARDINFO | Returns information about a sound card or pseudo device |
| SNDCTL_GETLABEL | Returns label assigned to this device |
| SNDCTL_GETSONG | Returns the current song name (if given) related with this device |
| SNDCTL_MIDIINFO | Returns information about a MIDI device |
| SNDCTL_MIXERINFO | Returns information about a mixer device |
| SNDCTL_SETLABEL | Sets the label for this device |
| SNDCTL_SETNAME | Sets the name of this device (if changeable) |
| SNDCTL_SETSONG | Sets the song name related with this device. |
| SNDCTL_SYSINFO | Return information about OSS and the devices |
