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NSCLPCSIO(4)		  OpenBSD Programmer's Manual		  NSCLPCSIO(4)

NAME
     nsclpcsio - National Semiconductor PC87366 LPC Super I/O with GPIO

SYNOPSIS
     nsclpcsio* at isa?
     gpio* at nsclpcsio?

DESCRIPTION
     The nsclpcsio driver provides support for the National Semiconductor
     PC87366 LPC Super I/O.  The Super I/O module incorporates several logical
     devices, the following ones are supported: GPIO, VLM and TMS.

     The GPIO logical device provides 29 I/O pins which can be accessed
     through the gpio(4) framework.  The gpioctl(8) program allows easy
     manipulation of the pins from userland.

     VLM and TMS logical devices provides hardware monitoring capabilities to
     be used with the sysctl(8) interface.  The following 17 monitoring
     sensors are available:

	   Sensor    Units    Typical Use
	   TSENS1    uK	      Remote diode
	   TSENS2    uK	      Remote diode
	   TNSC	     uK	      Local diode
	   VSENS0    uV DC    External source
	   VSENS1    uV DC    External source
	   VSENS2    uV DC    External source
	   VSENS3    uV DC    External source
	   VSENS4    uV DC    External source
	   VSENS5    uV DC    External source
	   VSENS6    uV DC    External source
	   VSB	     uV DC    VSB
	   VDD	     uV DC    VDD
	   VBAT	     uV DC    VBAT
	   AVDD	     uV DC    AVDD
	   TS1	     uV DC    Thermistor
	   TS2	     uV DC    Thermistor
	   TS3	     uV DC    Thermistor

SEE ALSO
     gpio(4), isa(4), gpioctl(8), sensorsd(8), sysctl(8)

HISTORY
     The nsclpcsio driver first appeared in NetBSD 2.0, OpenBSD support was
     added in OpenBSD 3.5.

AUTHORS
     The nsclpcsio driver was written by Matthias Drochner
     <drochner@netbsd.org> for NetBSD and then ported to OpenBSD 3.5 by Markus
     Friedl <markus@openbsd.org>.  GPIO support was added in OpenBSD 3.6 by
     Alexander Yurchenko <grange@openbsd.org>.

OpenBSD 4.9		       December 23, 2007		   OpenBSD 4.9

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