esm(4)
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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 1.5.1 January 8, 2001 1
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