Windows Sound System audio
wss0 at isa? port 0x530 irq 10 drq 0 flags
wss* at isapnp?
audio* at wss?
wss driver supports Microsoft's
Windows Sound System, MAD16 chip based hardware and their clones. The
Windows Sound System is a half-duplex device.
The base I/O port is set by a jumper on the board; valid choices are 0x530, 0x604, 0xE80, or 0xF40. Both IRQ and DMA channels are software programmable. The IRQ may be set to 5, 7, 9, 10, or 11, and the DMA channel may be set to 0, 1, or 3.
The configuration file must have bit 1 set in
flags to enable the MAD16 support. This is to avoid
potential conflicts with other devices when probing the MAD16 because it
requires use of extra I/O ports not in the base port range. Bit 2 in
flags disables the joystick port on MAD16
audio(4), intro(4), isa(4), isapnp(4)
The FM synthesizer is not supported.