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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 <[email protected]>
- 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.
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