Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 Kernel driver tc654 2 =================== 3 4 Supported chips: 5 * Microchip TC654 and TC655 6 Prefix: 'tc654' 7 Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20001734C.pdf 8 9 Authors: 10 Chris Packham <chris.packham@alliedtelesis.co.nz> 11 Masahiko Iwamoto <iwamoto@allied-telesis.co.jp> 12 13 Description 14 ----------- 15 This driver implements support for the Microchip TC654 and TC655. 16 17 The TC654 uses the 2-wire interface compatible with the SMBUS 2.0 18 specification. The TC654 has two (2) inputs for measuring fan RPM and 19 one (1) PWM output which can be used for fan control. 20 21 Configuration Notes 22 ------------------- 23 Ordinarily the pwm1_mode ABI is used for controlling the pwm output 24 mode. However, for this chip the output is always pwm, and the 25 pwm1_mode determines if the pwm output is controlled via the pwm1 value 26 or via the Vin analog input. 27 28 29 Setting pwm1_mode to 1 will cause the pwm output to be driven based on 30 the pwm1 value. Setting pwm1_mode to 0 will cause the pwm output to be 31 driven based on the Vin input.