ISAPNP(4) - Device Drivers Manual #
ISAPNP(4) - Device Drivers Manual
NAME #
isapnp - introduction to ISA Plug-and-Play support
SYNOPSIS #
isapnp0 at isa?
DESCRIPTION #
An isapnp bus can be configured for each supported ISA bus.
OpenBSD provides machine-independent bus support and drivers for ISA Plug-and-Play (isapnp) autoconfiguration of PnP-compatible devices on an ISA bus.
SUPPORTED DEVICES #
OpenBSD includes machine-independent ISAPNP drivers, sorted by function and driver name:
Disk controllers #
aic(4)
Adaptec AIC-6260 and AIC-6360 SCSI interface
wdc(4)
WD100x compatible hard disk controller driver
Serial and parallel interfaces #
com(4)
serial communications interface
Network interfaces #
an(4)
Aironet 4500/4800 IEEE 802.11FH/b wireless interfaces
ef(4)
3Com Fast EtherLink ISA (3c515) 10/100 Ethernet device
ep(4)
3Com EtherLink III and Fast EtherLink III 10/100 Ethernet device
le(4)
AMD LANCE Ethernet device
ne(4)
NE2000 and compatible 10/100 Ethernet device
we(4)
Western Digital/SMC WD80x3, SMC Elite Ultra, and SMC EtherEZ Ethernet device
Sound #
ess(4)
ESS Technology AudioDrive family audio device
gus(4)
Gravis UltraSound/UltraSound MAX audio device
mpu(4)
Roland/Yamaha MPU401 MIDI UART device
sb(4)
SoundBlaster family audio device
Miscellaneous devices #
joy(4)
games adapter
pcic(4)
ISA PCMCIA controllers
SEE ALSO #
HISTORY #
The isapnp driver appeared in NetBSD 1.3.
CAVEATS #
From time to time an isapnp device will be found which the kernel does not recognize. The kernel matches isapnp devices to device drivers based on identifiers which each device provides. For example, this device:
joy0 at isapnp0 “Creative SB16 PnP, CTL7001, PNPB02F, Game” port 0x200/8
This joystick calls itself by the two names “CTL7001” and “PNPB02F”. The latter is a standard name (which the kernel automatically recognizes), but “CTL7001” is a vendor-specific name which needs to be added to a table. Unfortunately, some devices advertise only their vendor-specific name; for instance:
“PnP Sound Chip, @P@1001, , " at isapnp0 port 0x200/8 not configured
Testing will show that this device is actually a joystick. To resolve the issue, the actual name “@P@1001” has to be entered into the database found in /sys/dev/isa/pnpdevs and a new kernel must be built. Then the device will probe like this:
joy0 at isapnp0 “PnP Sound Chip, @P@1001, , " port 0x200/8
OpenBSD 7.5 - April 27, 2023