1 .. SPDX-License-Identifier: GPL-2.0
3 Kernel driver gsc-hwmon
4 =======================
6 Supported chips: Gateworks GSC
7 Datasheet: http://trac.gateworks.com/wiki/gsc
8 Author: Tim Harvey <tharvey@gateworks.com>
13 This driver supports hardware monitoring for the temperature sensor,
14 various ADC's connected to the GSC, and optional FAN controller available
21 The voltage inputs are scaled either internally or by the driver depending
22 on the GSC version and firmware. The values returned by the driver do not need
23 further scaling. The voltage input labels provide the voltage rail name:
25 inX_input Measured voltage (mV).
26 inX_label Name of voltage rail.
29 Temperature Monitoring
30 ----------------------
32 Temperatures are measured with 12-bit or 10-bit resolution and are scaled
33 either internally or by the driver depending on the GSC version and firmware.
34 The values returned by the driver reflect millidegree Celsius:
36 tempX_input Measured temperature.
37 tempX_label Name of temperature input.
43 The GSC features 1 PWM output that operates in automatic mode where the
44 PWM value will be scaled depending on 6 temperature boundaries.
45 The tempeature boundaries are read-write and in millidegree Celsius and the
46 read-only PWM values range from 0 (off) to 255 (full speed).
47 Fan speed will be set to minimum (off) when the temperature sensor reads
48 less than pwm1_auto_point1_temp and maximum when the temperature sensor
49 equals or exceeds pwm1_auto_point6_temp.
51 pwm1_auto_point[1-6]_pwm PWM value.
52 pwm1_auto_point[1-6]_temp Temperature boundary.