| 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?
The 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.
The isagpio driver first appeared in
OpenBSD 4.0.
The isagpio driver was written by
Oleg Safiullin
<form@pdp-11.org.ru>.
| July 16, 2013 | openbsd |