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ESA(4) Device Drivers Manual ESA(4)

esaESS Technology Allegro-1/Maestro-3 family audio device

esa* at pci?
audio* at esa?

The esa driver provides support for the ESS Allegro-1 and Maestro-3 audio devices on the PCI bus. These devices are popular in laptop systems.

The Allegro-1 and the Maestro-3 are full-duplex devices that allow independent playback and recording at sample rates between 8000Hz and 48000Hz and are capable of playback at 8 and 16 bit in mono and stereo.

ac97(4), audio(4), intro(4), maestro(4), pci(4)

The esa device driver appeared in OpenBSD 3.1.

Jared D. McNeill ⟨⟩

Hardware volume control is not yet supported by this driver.

May 31, 2007 OpenBSD-5.3