1.. SPDX-License-Identifier: GPL-2.0-only 2 3Kernel driver sa67mcu 4===================== 5 6Supported chips: 7 8 * Kontron sa67mcu 9 10 Prefix: 'sa67mcu' 11 12 Datasheet: not available 13 14Authors: Michael Walle <mwalle@kernel.org> 15 16Description 17----------- 18 19The sa67mcu is a board management controller which also exposes a hardware 20monitoring controller. 21 22The controller has two voltage and one temperature sensor. The values are 23hold in two 8 bit registers to form one 16 bit value. Reading the lower byte 24will also capture the high byte to make the access atomic. The unit of the 25volatge sensors are 1mV and the unit of the temperature sensor is 0.1degC. 26 27Sysfs entries 28------------- 29 30The following attributes are supported. 31 32======================= ======================================================== 33in0_label "VDDIN" 34in0_input Measured VDDIN voltage. 35 36in1_label "VDD_RTC" 37in1_input Measured VDD_RTC voltage. 38 39temp1_input MCU temperature. Roughly the board temperature. 40======================= ======================================================== 41 42