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