ESO(4) | Device Drivers Manual | ESO(4)

# NAME

`eso` —
ESS Technology Solo-1 PCI AudioDrive audio device driver

# SYNOPSIS

`eso* at pci? dev ? function ?`
`audio* at audiobus?`
`joy* at eso?`
`mpu* at eso?`
`opl* at eso?`

# DESCRIPTION

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.

# SEE ALSO

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

# HISTORY

The `eso` device driver appeared in NetBSD 1.5. The on-board gameport was first supported in NetBSD 1.6.

June 22, 2005 | NetBSD 9.3