.\" $NetBSD: isa.4,v 1.45.8.1 2019/09/02 16:39:20 martin Exp $ .\" .\" Copyright (c) 1997 Jason R. Thorpe. All rights reserved. .\" Copyright (c) 1997 Jonathan Stone .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgements: .\" This product includes software developed by Jonathan Stone .\" 4. The name of the author may not be used to endorse or promote products .\" derived from this software without specific prior written permission .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" .Dd June 10, 2013 .Dt ISA 4 .Os .Sh NAME .Nm isa .Nd introduction to machine-independent ISA bus support and drivers .Sh SYNOPSIS Attachments are machine-dependent and depend on the bus topology and .Tn ISA bus interface of your system. See .Xr intro 4 for your system for details. .Sh DESCRIPTION .Nx includes a machine-independent .Tn ISA bus subsystem and several machine-independent .Tn ISA device drivers. .Pp Your system may support additional .Tn ISA devices. Drivers for .Tn ISA devices not listed here are machine-dependent. Consult your system's .Xr intro 4 for additional information. .Sh SUPPORTED DEVICES .Nx includes machine-independent .Tn ISA drivers, sorted by device type and driver name: .Ss SCSI interfaces .Bl -tag -width pcdisplay -offset indent .It adv Advansys .Tn SCSI interfaces. .It aha Adaptec AHA-154x family (154xA, 154xB, 154xC, and 154xCF) and the BusLogic BT54x .Tn SCSI interfaces. .It ahc Adaptec 29xx, 39xx, and other AIC-7xxx-based .Tn SCSI interfaces. .It aic Adaptec AIC-6260 and Adaptec AIC-6360 based .Tn SCSI interfaces, including the Adaptec 152x, SoundBlaster .Tn SCSI interfaces, and a variety of compatibles. .It bha BusLogic BT-445 .Tn SCSI interfaces. .It dpt DPT SmartCache/SmartRAID III and IV .Tn SCSI interfaces. .It esp NCR 53C9x, Emulex ESP406, and Qlogic FAS408 .Tn SCSI interfaces. .It nca NCR-5380/NCR-53C400 .It sea Seagate/Future Domain .Tn SCSI cards. ST01/02, Future Domain TMC-885, and Future Domain TMC-950. .It uha Ultrastor 14f .Tn SCSI interfaces. .It wds WD-7000 family of bus-mastering .Tn SCSI interfaces. .El .Ss Disk and tape controllers .Bl -tag -width pcdisplay -offset indent .It mcd Mitsumi CD-ROM drives. .It wdc Standard Western Digital type hard drive controllers: MFM, RLL, ESDI, and IDE/ATAPI. .It wt Wangtek and compatible QIC-02 and QIC-36 tape drives. .El .Ss Serial and parallel interfaces .Bl -tag -width pcdisplay -offset indent .It ast Multi-port serial communications card first made by AST. .It boca Boca BB100[48] and BB2016 multiplexing serial communications cards. .It com NS8250-, NS16450-, and NS16550-based serial ports. .It cy Cyclades Cyclom-4Y, -8Y, and -16Y asynchronous serial communications cards. .It ioat .Tn BOCA Research IOAT66 serial interfaces. .It lpt Standard .Tn ISA parallel port interface. .It rtfps IBM RT four-port serial interfaces. .It tcom Byte Runner Technologies TC-400 and TC-800 series serial interfaces. .El .Ss Network interfaces .Bl -tag -width pcdisplay -offset indent .It ai .Tn AT&T .Tn StarLan .Tn Ethernet interfaces. .It ate Allied Telesis AT1700 series and RE2000 series .Tn Ethernet interfaces. .It cs .Tn Cirrus Logic Crystal CS8900 .Tn Ethernet interfaces. .It ec 3Com EtherLink II (3c503) .Tn Ethernet interfaces. .It ef .Tn 3Com EtherLink II (3c507) .Tn Ethernet interfaces. .It eg 3Com EtherLink Plus (3c505) .Tn Ethernet interfaces. .It el 3Com EtherLink (3c501) .Tn Ethernet interfaces. .It ep 3Com EtherLink III (3c509) .Tn Ethernet interfaces. .It fmv Fujitsu FMV-181 and FMV-182 interfaces. .\".It hp .\" Broken driver for HP -relabelled .\" .Tn Ethernet .\" cards. .It ix Intel EtherExpress/16 .Tn Ethernet interfaces. .It iy Intel i82595-based .Tn Ethernet interfaces, including the EtherExpress Pro/10. .It lc DEC EtherWORKS III .Tn Ethernet interfaces (DE203, DE204, and DE205). .It le .Tn Ethernet interfaces based on the AMD LANCE chip, including BICC Isolan, Novell NE2100, Digital DEPCA, and PCnet-ISA. .It ne Novel NE2000 and compatible .Tn Ethernet interfaces. .It ntwoc SDL Communications Riscom/N2 synchronous serial interfaces. .It sm SMC91C9x-based .Tn Ethernet interfaces. .It tr TROPIC based token ring interfaces. .It we Western Digital/SMC 80x3, SMC Elite Ultra, and SMC EtherEZ .Tn Ethernet interfaces. .El .Ss Sound cards and MIDI interfaces .Bl -tag -width pcdisplay -offset indent .It aria Sierra's Aria based sound cards. .It cms Creative Music System. .It ess ESS Technology AudioDrive 1788-, 1888-, 1887-, and 888-based sound cards. .It gus Gravis Ultrasound sound cards. .It mpu Roland MPU401 (and compatible) MIDI UARTs. .It opl Yamaha OPL2 and OPL3 FM MIDI synthesizers. .It pas ProAudio Spectrum sound cards. .It sb SoundBlaster, SoundBlaster 16, and SoundBlaster Pro sound cards. .It wss Windows Sound System-compatible sound cards based on the AD1848 and compatible chips. .El .Ss Miscellaneous devices .Bl -tag -width pcdisplay -offset indent .It az Aztech/PackardBell radio card. .It ega EGA graphics boards. .It lm National Semiconductor LM78, LM79 and compatible hardware monitors. .It pcdisplay PC display adapters. .It pcic .Tn PCI .Tn PCMCIA controllers, including the Cirrus Logic GD6729. .It pckbc PC keyboard controllers. .It pcppi PC control and timer ports. .It pms PS/2 auxiliary port mice (including wheel mice). .It rt AIMS Lab Radiotrack FM radio. .It rtii AIMS Lab Radiotrack II FM radio. .It sf2r SoundForte RadioLink SF16-FMR2 FM radio. .It soekrisgpio Soekris net6501 GPIO and LEDs driver .It tcic Databook DB86082, DB86084, DB86184, and DB86072 .Tn PCMCIA controllers. .It vga VGA graphics boards. .It wbsio Winbond LPC Super I/O. .El .Pp Note that some .Tn ISA devices also have newer .Tn ISA Plug-and-Play variants. These are listed in .Xr isapnp 4 . Some i386 platforms use .Xr pnpbios 4 to attach .Tn ISA devices. .Sh DIAGNOSTICS .Bl -diag .It "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. .Pp There are two reasons this can happen: .Bl -bullet .It 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. .It 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. .El .El .Sh SEE ALSO .Xr adv 4 , .Xr aha 4 , .Xr ahc 4 , .Xr ai 4 , .Xr aic 4 , .Xr aria 4 , .Xr ast 4 , .Xr ate 4 , .Xr az 4 , .Xr bha 4 , .Xr boca 4 , .Xr cms 4 , .Xr com 4 , .Xr cs 4 , .Xr cy 4 , .Xr dpt 4 , .Xr ec 4 , .Xr ef 4 , .Xr eg 4 , .Xr el 4 , .Xr ep 4 , .Xr esp 4 , .Xr ess 4 , .Xr fmv 4 , .Xr gus 4 , .Xr intro 4 , .Xr ioat 4 , .Xr isapnp 4 , .Xr ix 4 , .Xr iy 4 , .Xr joy 4 , .Xr lc 4 , .Xr le 4 , .Xr lm 4 , .Xr lpt 4 , .Xr mcd 4 , .Xr mpu 4 , .Xr nca 4 , .Xr ne 4 , .Xr ntwoc 4 , .Xr opl 4 , .Xr pas 4 , .Xr pcdisplay 4 , .Xr pcic 4 , .Xr pckbc 4 , .Xr pcppi 4 , .Xr pms 4 , .Xr pnpbios 4 , .Xr rt 4 , .Xr rtfps 4 , .Xr rtii 4 , .Xr sb 4 , .Xr sea 4 , .Xr sf2r 4 , .Xr sm 4 , .Xr soekrisgpio 4 , .Xr tcic 4 , .Xr tcom 4 , .Xr tr 4 , .Xr uha 4 , .Xr vga 4 , .Xr wbsio 4 , .Xr wd 4 , .Xr wdc 4 , .Xr wds 4 , .Xr we 4 , .Xr wss 4 , .Xr wt 4 .Sh HISTORY The machine-independent .Tn ISA subsystem appeared in .Nx 1.2 .