Based on kernel version 6.11
. Page generated on 2024-09-24 08:21 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | Kernel driver emc2103 ====================== Supported chips: * SMSC EMC2103 Addresses scanned: I2C 0x2e Prefix: 'emc2103' Datasheet: Not public Authors: Steve Glendinning <steve.glendinning@smsc.com> Description ----------- The Standard Microsystems Corporation (SMSC) EMC2103 chips contain up to 4 temperature sensors and a single fan controller. Fan rotation speeds are reported in RPM (rotations per minute). An alarm is triggered if the rotation speed has dropped below a programmable limit. Fan readings can be divided by a programmable divider (1, 2, 4 or 8) to give the readings more range or accuracy. Not all RPM values can accurately be represented, so some rounding is done. With a divider of 1, the lowest representable value is 480 RPM. This driver supports RPM based control, to use this a fan target should be written to fan1_target and pwm1_enable should be set to 3. The 2103-2 and 2103-4 variants have a third temperature sensor, which can be connected to two anti-parallel diodes. These values can be read as temp3 and temp4. If only one diode is attached to this channel, temp4 will show as "fault". The module parameter "apd=0" can be used to suppress this 4th channel when anti-parallel diodes are not fitted. |