Kernel driver sa67mcu

Supported chips:

• Kontron sa67mcu

  Prefix: ‘sa67mcu’

  Datasheet: not available

Authors: Michael Walle <mwalle@kernel.org>

Description

The sa67mcu is a board management controller which also exposes a hardware monitoring controller.

The controller has two voltage and one temperature sensor. The values are hold in two 8 bit registers to form one 16 bit value. Reading the lower byte will also capture the high byte to make the access atomic. The unit of the volatge sensors are 1mV and the unit of the temperature sensor is 0.1degC.

Sysfs entries

The following attributes are supported.

in0_label	“VDDIN”
in0_input	Measured VDDIN voltage.
in1_label	“VDD_RTC”
in1_input	Measured VDD_RTC voltage.
temp1_input	MCU temperature. Roughly the board temperature.