ISAGPIO(4) - Device Drivers Manual

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