|ISAGPIO(4)||Device Drivers Manual||ISAGPIO(4)|
isagpio — ISA I/O
mapped as GPIO
isagpio0 at isa? port 0x78
isagpio1 at isa? port 0x80
gpio* at isagpio?
isagpio driver allows access to the
8-bit ISA I/O space through the gpio(4)
framework, thus making use of the simple GPIO devices connected directly to
the ISA bus.
isagpio driver first appeared in
isagpio driver was written by
|July 16, 2013||OpenBSD-current|