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NetBSD 6.1.5 - man page for isa (netbsd section 4)

ISA(4)				   BSD 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 interfaces.

	   aic	      Adaptec AIC-6260 and Adaptec AIC-6360 based SCSI interfaces, 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 interfaces.

	   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 communications 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, including BICC Isolan,
		      Novell NE2100, Digital DEPCA, and PCnet-ISA.

	   ne	      Novel NE2000 and compatible Ethernet interfaces.

	   ntwoc      SDL Communications Riscom/N2 synchronous serial interfaces.

	   sm	      SMC91C9x-based Ethernet interfaces.

	   tr	      TROPIC based token ring interfaces.

	   we	      Western Digital/SMC 80x3, SMC Elite Ultra, and SMC EtherEZ Ethernet inter-
		      faces.

   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 compat-
		      ible chips.

   Miscellaneous devices
	   az	      Aztech/PackardBell radio card.

	   ega	      EGA graphics boards.

	   lm	      National Semiconductor LM78, LM79 and compatible hardware 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.

	   wbsio      Winbond LPC Super I/O.

     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:

     o	 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.

     o	 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 usu-
	 ally 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), wbsio(4), wd(4), wdc(4), wds(4), we(4),
     wss(4), wt(4)

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

BSD					February 21, 2010				      BSD


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