NSCLPCSIO(4) BSD Kernel Interfaces Manual NSCLPCSIO(4)
nsclpcsio -- National Semiconductor PC87366 LPC Super I/O with GPIO
nsclpcsio* at isa?
gpio* at nsclpcsio?
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 manip-
ulation 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 sen-
sors 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
gpio(4), isa(4), gpioctl(8), sensorsd(8), sysctl(8)
The nsclpcsio driver first appeared in NetBSD 2.0, OpenBSD support was
added in OpenBSD 3.5.
The nsclpcsio driver was written by Matthias Drochner
<firstname.lastname@example.org> for NetBSD and then ported to OpenBSD 3.5 by Markus
Friedl <email@example.com>. GPIO support was added in OpenBSD 3.6 by
Alexander Yurchenko <firstname.lastname@example.org>.
BSD April 26, 2017 BSD