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NSCLPCSIO(4) NetBSD Kernel Interfaces Manual NSCLPCSIO(4)
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Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
nsclpcsio -- National Semiconductor PC87366 LPC Super I/O
nsclpcsio* at isa?
gpio* at nsclpcsio?
The nsclpcsio driver provides support for the National Semiconductor
PC87366 LPC Super I/O. The Super I/O 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 manip-
ulation of the pins from userland.
VLM and TMS logical devices provides hardware monitoring capabilities to
be used with the envsys(4) API. The following 17 monitoring sensors are
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
The nsclpcsio device appeared in NetBSD 2.0.
The chip decodes address ranges which are not obvious and cannot be con-
trolled by the kernel configuration file (must be set up by the BIOS).
NetBSD 9.2 November 9, 2007 NetBSD 9.2