eso —
ESS Technology Solo-1 PCI AudioDrive audio device driver
eso* at pci? dev ? function ?
audio* at audiobus?
joy* at eso?
mpu* at eso?
opl* at eso?
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.
  - 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.
Theeso device driver appeared in
  NetBSD 1.5. The on-board gameport was first supported
  in NetBSD 1.6.