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MAESTRO(4)	       FreeBSD Kernel Interfaces Manual		    MAESTRO(4)

NAME
     maestro --	ESS Maestro 1 and 2 audio device

SYNOPSIS
     maestro* at pci?
     audio* at maestro?

DESCRIPTION
     The maestro driver	supports ESS maestro 1,	2 and 2E, including OEM	prod-
     ucts that identify	as 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
     different and supported by	the esa(4) driver.

     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 2 Hz 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.

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

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

AUTHORS
     David Leonard and Marc Espie.

BUGS
     Very old cards with a PT101 mixer component should	have partial support,
     e.g., the mixer does not work.

     Recording should work soon.

FreeBSD	13.0		       January 15, 2015			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS | BUGS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=maestro&sektion=4&manpath=OpenBSD+6.9>

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