GPIOSIM(4) |
Kernel Interfaces Manual |
GPIOSIM(4) |
NAME
gpiosim — General Purpose Input/Output Simulator
SYNOPSIS
pseudo-device gpiosim
DESCRIPTION
The
gpiosim pseudo-device simulates a 32-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.
AUTHORS
The gpiosim driver was written by Marc Balmer <marc@msys.ch>.