MAESTRO(4)                OpenBSD Programmer's Manual               MAESTRO(4)

NAME
     maestro - ESS Maestro 1 and 2 sound hardware driver

SYNOPSIS
     maestro* at pci? dev ? function ?
     audio* at maestro?

DESCRIPTION
     The maestro driver supports ESS maestro 1, 2 and 2E, and a few derived
     products like NEC Versa, or NEC VersaProNX VA26D, as long as they use an
     AC'97 compliant codec, which is always the case, except for very early
     models. It does not support maestro 3 cards, which are entirely differ-
     ent.

     Maestro cards have direct support for 16 bit signed little-endian mono
     and stereo, 8 bit signed and unsigned mono and stereo. Other encodings
     are emulated in software. Sampling range is 4000 - 48000 Hz, with roughly
     a 2Hz resolution.

     Maestro cards have some DSP and dolby digital 5:1 hardware, but this
     driver does not support it.

     Other functions of maestro cards (modem, joystick) are not supported.

     PCI interrupt sharing works, as long as other devices comply too.

HISTORY
     Maestro hardware information was gleaned from the FreeBSD and Linux OSS
     drivers.

AUTHORS
     David Leonard and Marc Espie.

SEE ALSO
     ac97(4), audio(4), pci(4)

BUGS
     Recording should work soon.

OpenBSD 2.9                    January 13, 2001                              1
