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.


SEE ALSO

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


HISTORY

     The esm device driver appeared in NetBSD 1.6.


BUGS

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

NetBSD 1.6                      January 8, 2001                              1