NAME
gpiosim —
General Purpose Input/Output
Simulator
SYNOPSIS
pseudo-device gpiosim
DESCRIPTION
The
gpiosim pseudo-device simulates a 64-bit wide
gpio(4) device. The state of the
simulated device can be manipulated through the
sysctl(8) interface. For this
purpose, access the "hw.gpiosim<N>.value"
sysctl(8) variable, where
"<N>" denotes the number of the
gpiosim
instance.
SEE ALSO
gpio(4),
sysctl(8)
AUTHORS
The
gpiosim driver was written by
Marc
Balmer
<
marc@msys.ch>.