| .. SPDX-License-Identifier: GPL-2.0-only |
| |
| 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. |
| ======================= ======================================================== |
| |
