PCFADC(4) - Device Drivers Manual

PCFADC(4) - Device Drivers Manual #

PCFADC(4) - Device Drivers Manual

NAME #

pcfadc - Philips PCF8591 temperature sensor

SYNOPSIS #

pcfadc* at iic?

DESCRIPTION #

The pcfadc driver supports the PCF8591 I2C analog to digital converter, making its readings available through a 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 ALSO #

iic(4), intro(4), sensorsd(8), sysctl(8)

HISTORY #

The pcfadc driver first appeared in OpenBSD 3.9.

AUTHORS #

The pcfadc driver was written by Damien Miller <djm@openbsd.org>.

OpenBSD 7.5 - July 16, 2013