esm(4) - NetBSD Manual Pages

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ESM(4)                    NetBSD Programmer's Manual                    ESM(4)


NAME

     esm - ESS Technology Maestro 2/2E PCI Audio Accelerator audio device


SYNOPSIS

     esm*   at pci? dev ? function ?
     audio* at esm?


DESCRIPTION

     The esm device driver supports sound cards based on ESS Technology Mae-
     stro, Maestro-2, and Maestro-2E PCI AC97 Audio Accelerator chips (ES1968
     and ES1978).  Due to their power management capabilities, the Maestro
     chips are often used in laptop and notebook systems.

     The Maestro is a full-duplex device that allows independent playback and
     recording at sample rates between 4000 Hz and 48 kHz.  The sound proces-
     sor is capable of handling and converting 8 and 16 bit mono and stereo
     data.


BUGS

     Currently, this driver does not support recording, hardware volume set-
     tings, MIDI, or joystick input.


SEE ALSO

     audio(4), mpu(4), joy(4), pci(4)


HISTORY

     The esm device driver appeared in NetBSD 1.5.1.

NetBSD 1.5.2                    January 8, 2001                              1