ofisa(4) [netbsd man page]

OFISA(4)						   BSD Kernel Interfaces Manual 						  OFISA(4)

NAME

     ofisa -- introduction to machine-independent Open Firmware ISA bus support and drivers

SYNOPSIS

     ofisa* at mainbus0
     XX*    at ofisa?

DESCRIPTION

     NetBSD includes a machine-independent ISA bus subsystem and several machine-independent ISA device drivers.  The ofisa bus uses Open Firmware
     to determine how to attach devices.

HARDWARE

     NetBSD includes machine-independent Open Firmware ISA drivers, sorted by device type and driver name:

   Disk and tape controllers
	   wdc	 Standard Western Digital type hard drive controllers: MFM, RLL, ESDI, and IDE/ATAPI.

   Serial and parallel interfaces
	   com	 NS8250-, NS16450-, and NS16550-based serial ports.

	   lpt	 Standard ISA parallel port interface.

   Network interfaces
	   cs	 Cirrus Logic Crystal CS8900 Ethernet interfaces.

   Sound cards and MIDI interfaces
	   ess	 ESS Technology AudioDrive 1788-, 1888-, 1887-, and 888-based sound cards.

   Miscellaneous devices
	   joy	 Game (joystick) adapters.

SEE ALSO

     com(4), cs(4), ess(4), intro(4), isa(4), joy(4), lpt(4), wdc(4)

HISTORY

     The Open Firmware ISA subsystem appeared in NetBSD 1.4.

BSD
								   July 25, 2000							       BSD

ESS(4)							   BSD Kernel Interfaces Manual 						    ESS(4)

NAME

     ess -- ESS Technology AudioDrive family audio device driver

SYNOPSIS

     ess*   at isapnp?
     ess*   at pnpbios? index ?
     ess*   at ofisa?
     audio* at audiobus?
     opl*   at ess?

DESCRIPTION

     The ess driver provides support for the ESS 1788, 1888, 1887, and 888 AudioDrive audio devices.

     The AudioDrive 1788 is a half-duplex device, while the 1888, 1887, and 888 are full-duplex. All are capable of 8- and 16-bit audio sample
     recording and playback at rates up to 44.1kHz.

     The AudioDrive takes 16 I/O ports. The I/O port range, IRQ, and DRQ channels are set by the driver to the values specified in the configura-
     tion file (or for isapnp, pnpbios, or ofisa, the values assigned from the firmware).  The I/O port base must be one of 0x220, 0x230, 0x240,
     0x250. The IRQ must be one of 5, 7, 9, 10 (or 15 on the 1887 only). The first DRQ channel must be selected from 0, 1, 3. The second DRQ chan-
     nel (used for playback by the full-duplex 1888/1887, ignored by the 1788) can additionally be set to 5. If both DRQ channels are used they
     must be different.

     The joystick interface (if enabled) is handled by the joy(4) driver.

SEE ALSO

     audio(4), isapnp(4), joy(4), ofisa(4), opl(4), pnpbios(4)

HISTORY

     The ess device driver appeared in NetBSD 1.4.

BUGS

     The AudioDrive devices have a SoundBlaster compatibility mode, and may be detected by the SoundBlaster driver (see sb(4)) rather than the
     AudioDrive driver. The workaround is to remove the SoundBlaster driver from the kernel configuration.

BSD
								   June 22, 2005							       BSD