Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 Kernel driver emc2103 2 ====================== 3 4 Supported chips: 5 * SMSC EMC2103 6 Addresses scanned: I2C 0x2e 7 Prefix: 'emc2103' 8 Datasheet: Not public 9 10 Authors: 11 Steve Glendinning <steve.glendinning@smsc.com> 12 13 Description 14 ----------- 15 16 The Standard Microsystems Corporation (SMSC) EMC2103 chips 17 contain up to 4 temperature sensors and a single fan controller. 18 19 Fan rotation speeds are reported in RPM (rotations per minute). An alarm is 20 triggered if the rotation speed has dropped below a programmable limit. Fan 21 readings can be divided by a programmable divider (1, 2, 4 or 8) to give 22 the readings more range or accuracy. Not all RPM values can accurately be 23 represented, so some rounding is done. With a divider of 1, the lowest 24 representable value is 480 RPM. 25 26 This driver supports RPM based control, to use this a fan target 27 should be written to fan1_target and pwm1_enable should be set to 3. 28 29 The 2103-2 and 2103-4 variants have a third temperature sensor, which can 30 be connected to two anti-parallel diodes. These values can be read 31 as temp3 and temp4. If only one diode is attached to this channel, temp4 32 will show as "fault". The module parameter "apd=0" can be used to suppress 33 this 4th channel when anti-parallel diodes are not fitted.