ISA(4)                  NetBSD Kernel Interfaces Manual                 ISA(4)

NAME
     isa -- introduction to machine-independent ISA bus support and drivers

SYNOPSIS
     Attachments are machine-dependent and depend on the bus topology and ISA
     bus interface of your system.  See intro(4) for your system for details.

DESCRIPTION
     NetBSD includes a machine-independent ISA bus subsystem and several
     machine-independent ISA device drivers.

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

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

   SCSI interfaces
           adv        Advansys SCSI interfaces.

           aha        Adaptec AHA-154x family (154xA, 154xB, 154xC, and
                      154xCF) and the BusLogic BT54x SCSI interfaces.

           ahc        Adaptec 29xx, 39xx, and other AIC-7xxx-based SCSI inter-
                      faces.

           aic        Adaptec AIC-6260 and Adaptec AIC-6360 based SCSI inter-
                      faces, including the Adaptec 152x, SoundBlaster SCSI
                      interfaces, and a variety of compatibles.

           bha        BusLogic BT-445 SCSI interfaces.

           dpt        DPT SmartCache/SmartRAID III and IV SCSI interfaces.

           esp        NCR 53C9x, Emulex ESP406, and Qlogic FAS408 SCSI inter-
                      faces.

           nca        NCR-5380/NCR-53C400

           sea        Seagate/Future Domain SCSI cards.  ST01/02, Future
                      Domain TMC-885, and Future Domain TMC-950.

           uha        Ultrastor 14f SCSI interfaces.

           wds        WD-7000 family of bus-mastering SCSI interfaces.

   Disk and tape controllers
           mcd        Mitsumi CD-ROM drives.

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

           wt         Wangtek and compatible QIC-02 and QIC-36 tape drives.

   Serial and parallel interfaces
           ast        Multi-port serial communications card first made by AST.

           boca       Boca BB100[48] and BB2016 multiplexing serial communica-
                      tions cards.

           com        NS8250-, NS16450-, and NS16550-based serial ports.

           cy         Cyclades Cyclom-4Y, -8Y, and -16Y asynchronous serial
                      communications cards.

           ioat       BOCA Research IOAT66 serial interfaces.

           lpt        Standard ISA parallel port interface.

           rtfps      IBM RT four-port serial interfaces.

           tcom       Byte Runner Technologies TC-400 and TC-800 series serial
                      interfaces.

   Network interfaces
           ai         AT&T StarLan Ethernet interfaces.

           ate        Allied Telesis AT1700 series and RE2000 series Ethernet
                      interfaces.

           cs         Cirrus Logic Crystal CS8900 Ethernet interfaces.

           ec         3Com EtherLink II (3c503) Ethernet interfaces.

           ef         3Com EtherLink II (3c507) Ethernet interfaces.

           eg         3Com EtherLink Plus (3c505) Ethernet interfaces.

           el         3Com EtherLink (3c501) Ethernet interfaces.

           ep         3Com EtherLink III (3c509) Ethernet interfaces.

           fmv        Fujitsu FMV-181 and FMV-182 interfaces.

           ix         Intel EtherExpress/16 Ethernet interfaces.

           iy         Intel i82595-based Ethernet interfaces, including the
                      EtherExpress Pro/10.

           lc         DEC EtherWORKS III Ethernet interfaces (DE203, DE204,
                      and DE205).

           le         Ethernet interfaces based on the AMD LANCE chip, includ-
                      ing BICC Isolan, Novell NE2100, Digital DEPCA, and
                      PCnet-ISA.

           ne         Novel NE2000 and compatible Ethernet interfaces.

           ntwoc      SDL Communications Riscom/N2 synchronous serial inter-
                      faces.

           sm         SMC91C9x-based Ethernet interfaces.

           tr         TROPIC based token ring interfaces.

           we         Western Digital/SMC 80x3, SMC Elite Ultra, and SMC
                      EtherEZ Ethernet interfaces.

   Sound cards and MIDI interfaces
           aria       Sierra's Aria based sound cards.

           cms        Creative Music System.

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

           gus        Gravis Ultrasound sound cards.

           mpu        Roland MPU401 (and compatible) MIDI UARTs.

           opl        Yamaha OPL2 and OPL3 FM MIDI synthesizers.

           pas        ProAudio Spectrum sound cards.

           sb         SoundBlaster, SoundBlaster 16, and SoundBlaster Pro
                      sound cards.

           wss        Windows Sound System-compatible sound cards based on the
                      AD1848 and compatible chips.

   Miscellaneous devices
           az         Aztech/PackardBell radio card.

           ega        EGA graphics boards.

           lm         National Semiconductor LM78, LM79 and compatible hard-
                      ware monitors.

           pcdisplay  PC display adapters.

           pcic       PCI PCMCIA controllers, including the Cirrus Logic
                      GD6729.

           pckbc      PC keyboard controllers.

           pcppi      PC control and timer ports.

           pms        PS/2 auxiliary port mice (including wheel mice).

           rt         AIMS Lab Radiotrack FM radio.

           rtii       AIMS Lab Radiotrack II FM radio.

           sf2r       SoundForte RadioLink SF16-FMR2 FM radio.

           tcic       Databook DB86082, DB86084, DB86184, and DB86072 PCMCIA
                      controllers.

           vga        VGA graphics boards.

     Note that some ISA devices also have newer ISA Plug-and-Play variants.
     These are listed in isapnp(4).  Some i386 platforms use pnpbios(4) to
     attach ISA devices.

DIAGNOSTICS
     Stray interrupt on IRQ 7  It means the interrupt controller reported an
     unmasked interrupt on IRQ 7, but no driver attached to that IRQ `claimed'
     it.

     There are two reasons this can happen:

     +   In anything other than i386, it would almost always mean that there
         is a driver attached to the IRQ, but it is the wrong driver.

     +   On i386, there is the more obscure issue of `default IRQ7's.  That
         is, when a device asserts an IRQ, but the IRQ is deasserted after the
         PIC latches the interrupt and before the CPU acknowledges it, the PIC
         just flat out lies about which IRQ it was.  It is usually due to a
         suboptimally coded driver.

SEE ALSO
     adv(4), aha(4), ahc(4), ai(4), aic(4), aria(4), ast(4), ate(4), az(4),
     bha(4), boca(4), cms(4), com(4), cs(4), cy(4), dpt(4), ec(4), ef(4),
     eg(4), el(4), ep(4), esp(4), ess(4), fmv(4), gus(4), intro(4), ioat(4),
     isapnp(4), ix(4), iy(4), joy(4), lc(4), le(4), lm(4), lpt(4), mcd(4),
     mpu(4), nca(4), ne(4), ntwoc(4), opl(4), pas(4), pcdisplay(4), pcic(4),
     pckbc(4), pcppi(4), pms(4), pnpbios(4), rt(4), rtfps(4), rtii(4), sb(4),
     sea(4), sf2r(4), sm(4), tcic(4), tcom(4), tr(4), uha(4), vga(4), wd(4),
     wdc(4), wds(4), we(4), wss(4), wt(4)

HISTORY
     The machine-independent ISA subsystem appeared in NetBSD 1.2.

NetBSD 5.1                       June 28, 2005                      NetBSD 5.1

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