June 22, 2005 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 NetBSD1.5. The on-board gameport was first supported in NetBSD1.6.