ISAGPIO(4) - Device Drivers Manual #
ISAGPIO(4) - Device Drivers Manual
NAME #
isagpio - ISA I/O mapped as GPIO
SYNOPSIS #
isagpio0 at isa? port 0x78 isagpio1 at isa? port 0x80 gpio* at isagpio?
DESCRIPTION #
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.
SEE ALSO #
gpio(4), intro(4), isa(4), gpioctl(8)
HISTORY #
The isagpio driver first appeared in OpenBSD 4.0.
AUTHORS #
The isagpio driver was written by Oleg Safiullin <form@pdp-11.org.ru>.
OpenBSD 7.5 - July 16, 2013