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ISAGPIO(4)               BSD Kernel Interfaces Manual               ISAGPIO(4)

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>.

BSD                             March 24, 2017                             BSD