GPIOSIM(4)              NetBSD 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.

SEE ALSO
     gpio(4), sysctl(8)

AUTHORS
     The gpiosim driver was written by Marc Balmer <marc@msys.ch>.

NetBSD 5.0                      August 1, 2009                      NetBSD 5.0