EISA(4)                   OpenBSD Programmer's Manual                  EISA(4)

NAME
     eisa - introduction to EISA bus machine-independent drivers and support

SYNOPSIS
     Machine-dependent; depends on the bus topology and EISA bus interface of
     your system.  Typical EISA buses are either connected directly to the
     main system bus, or via an PCI to EISA bridge.  See the intro(4) documen-
     tation for your system for details.

DESCRIPTION
     OpenBSD includes a machine-independent EISA bus subsystem and several ma-
     chine-independent EISA device drivers.

     Your system may support additional EISA devices.  Drivers for EISA de-
     vices not listed here are machine-dependent.  Consult your system's
     intro(4) for additional information.

SUPPORTED DEVICES
     OpenBSD includes machine-independent EISA drivers, sorted by device type
     and driver name:

   Disk and tape controllers
        cac(4)        Compaq array controllers.
        dpt(4)        DPT SmartCache/SmartRAID controllers.

   SCSI interfaces
        ahb(4)        Adaptec 174x SCSI interfaces.
        ahc(4)        Adaptec AIC 7770, 274x, and 284x SCSI interfaces.
        bha(4)        BusLogic BT-74x SCSI interfaces.
        uha(4)        Ultrastor 24f SCSI interfaces.

   Network interfaces
        ep(4)         3Com 3c579 and 3c592 10Mbit Ethernet, and 3c597
                      10/100Mbit Ethernet interfaces.
        fea(4)        Digital DEFEA FDDI interfaces.

     Note that most or all EISA devices also have PCI or ISA equivalents.
     These are listed in pci(4), isa(4), or isapnp(4), respectively.  The man-
     ual pages for each individual driver also lists the supported bus vari-
     ants.

SEE ALSO
     ahb(4), ahc(4), cac(4), dpt(4), ep(4), fea(4), intro(4), uha(4)

HISTORY
     The machine-independent EISA subsystem appeared in OpenBSD 1.2.

OpenBSD 3.5                    February 17, 1997                             1
