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Kernel driver max1668
=====================
Supported chips:
* Maxim MAX1668, MAX1805 and MAX1989
Prefix: 'max1668'
Addresses scanned: I2C
0x18,
0x19,
0x1a,
0x29,
0x2a,
0x2b,
0x4c,
0x4d,
0x4e
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX1668-MAX1989.pdf
Author:
David George <david.george@ska.ac.za>
Description
-----------
This driver implements support for the Maxim MAX1668, MAX1805 and MAX1989
chips.
The three devices are very similar, but the MAX1805 has a reduced feature
set; only two remote temperature inputs vs the four available on the other
two ICs.
The driver is able to distinguish between the devices and creates sysfs
entries as follows:
- MAX1805, MAX1668 and MAX1989:
=============== == ============================================================
temp1_input ro local (ambient) temperature
temp1_max rw local temperature maximum threshold for alarm
temp1_max_alarm ro local temperature maximum threshold alarm
temp1_min rw local temperature minimum threshold for alarm
temp1_min_alarm ro local temperature minimum threshold alarm
temp2_input ro remote temperature
1
temp2_max rw remote temperature
1 maximum threshold for alarm
temp2_max_alarm ro remote temperature
1 maximum threshold alarm
temp2_min rw remote temperature
1 minimum threshold for alarm
temp2_min_alarm ro remote temperature
1 minimum threshold alarm
temp3_input ro remote temperature
2
temp3_max rw remote temperature
2 maximum threshold for alarm
temp3_max_alarm ro remote temperature
2 maximum threshold alarm
temp3_min rw remote temperature
2 minimum threshold for alarm
temp3_min_alarm ro remote temperature
2 minimum threshold alarm
=============== == ============================================================
- MAX1668 and MAX1989 only:
=============== == ============================================================
temp4_input ro remote temperature
3
temp4_max rw remote temperature
3 maximum threshold for alarm
temp4_max_alarm ro remote temperature
3 maximum threshold alarm
temp4_min rw remote temperature
3 minimum threshold for alarm
temp4_min_alarm ro remote temperature
3 minimum threshold alarm
temp5_input ro remote temperature
4
temp5_max rw remote temperature
4 maximum threshold for alarm
temp5_max_alarm ro remote temperature
4 maximum threshold alarm
temp5_min rw remote temperature
4 minimum threshold for alarm
temp5_min_alarm ro remote temperature
4 minimum threshold alarm
=============== == ============================================================
Module Parameters
-----------------
* read_only: int
Set to non-zero if you wish to prevent write access to alarm thresholds.