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GPIOSIM(4) Device Drivers Manual GPIOSIM(4)
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>.
NetBSD 9.99 May 20, 2013 NetBSD 9.99