ECADC(4) OpenBSD Programmer's Manual (SPARC64) ECADC(4)NAME
ecadc - environmental monitoring subsystem temperature sensor
SYNOPSIS
ecadc* at iic?
DESCRIPTION
The ecadc driver supports the PCF8591 I2C analog to digital converter
that is part of the environmental monitoring subsystem found on the Sun
Enterprise 250 and Sun Enterprise 450 systems. The temperature readings
are made available through the sysctl(8) interface.
The driver reads up to four A/D lines configured as temperature inputs.
Sensor names, type and calibration information are read from
OpenFirmware.
SEE ALSOiic(4), intro(4), pcfadc(4), sensorsd(8), sysctl(8)HISTORY
The ecadc driver first appeared in OpenBSD 4.3.
AUTHORS
The ecadc driver was written by Mark Kettenis <kettenis@openbsd.org>
based on the pcfadc(4) driver written by Damien Miller <djm@openbsd.org>.
OpenBSD 4.9 February 26, 2010 OpenBSD 4.9