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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.

SEE ALSO
     gpio(4), sysctl(8)

AUTHORS
     The gpiosim driver was written by Marc Balmer <marcATmsys.ch>.

NetBSD 6.1.5                    August 1, 2009                    NetBSD 6.1.5