eso(4)

eso4

Ess technology solo-1 pci audiodrive audio device

Usage

eso* at pci? audio* at eso?

Overview

The eso device driver supports sound cards based on ESS Technology Solo-1 PCI AudioDrive chips (ES1938 and ES1946), e.g. the TerraTec 128i PCI card.

Diagnostics

eso0: can't map Audio 1 DMA into I/O space

PCI autoconfiguration did not map the first audio channel DMA controller into I/O space at a suitable address, and the driver was not able map it by itself. In that case only playback functionality will be available.

eso0: reset timeout

The device failed to acknowledge being reset.

eso0: RDR timeout

The driver timed out reading data from a controller register.

eso0: WDR timeout

The driver timed out waiting to send a command or writing to a controller register.

Releases

56 releases since OpenBSD 2.6; the text changed 8 times.

  1. 2.6–2.7
  2. 2.8–3.1
  3. 3.2–3.3
  4. 3.4–3.6
  5. 3.7–3.9
  6. 4.0–4.1
  7. 4.2–4.3
  8. 4.4–4.7
  9. 4.8–8.0

History

The eso device driver appeared in OpenBSD 2.5.

Bugs

The game port and MIDI port are not supported.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.