Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 Kernel driver max1668 2 ===================== 3 4 Supported chips: 5 * Maxim MAX1668, MAX1805 and MAX1989 6 Prefix: 'max1668' 7 Addresses scanned: I2C 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e 8 Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX1668-MAX1989.pdf 9 10 Author: 11 David George <david.george@ska.ac.za> 12 13 Description 14 ----------- 15 16 This driver implements support for the Maxim MAX1668, MAX1805 and MAX1989 17 chips. 18 19 The three devices are very similar, but the MAX1805 has a reduced feature 20 set; only two remote temperature inputs vs the four available on the other 21 two ICs. 22 23 The driver is able to distinguish between the devices and creates sysfs 24 entries as follows: 25 26 MAX1805, MAX1668 and MAX1989: 27 28 temp1_input ro local (ambient) temperature 29 temp1_max rw local temperature maximum threshold for alarm 30 temp1_max_alarm ro local temperature maximum threshold alarm 31 temp1_min rw local temperature minimum threshold for alarm 32 temp1_min_alarm ro local temperature minimum threshold alarm 33 temp2_input ro remote temperature 1 34 temp2_max rw remote temperature 1 maximum threshold for alarm 35 temp2_max_alarm ro remote temperature 1 maximum threshold alarm 36 temp2_min rw remote temperature 1 minimum threshold for alarm 37 temp2_min_alarm ro remote temperature 1 minimum threshold alarm 38 temp3_input ro remote temperature 2 39 temp3_max rw remote temperature 2 maximum threshold for alarm 40 temp3_max_alarm ro remote temperature 2 maximum threshold alarm 41 temp3_min rw remote temperature 2 minimum threshold for alarm 42 temp3_min_alarm ro remote temperature 2 minimum threshold alarm 43 44 MAX1668 and MAX1989 only: 45 temp4_input ro remote temperature 3 46 temp4_max rw remote temperature 3 maximum threshold for alarm 47 temp4_max_alarm ro remote temperature 3 maximum threshold alarm 48 temp4_min rw remote temperature 3 minimum threshold for alarm 49 temp4_min_alarm ro remote temperature 3 minimum threshold alarm 50 temp5_input ro remote temperature 4 51 temp5_max rw remote temperature 4 maximum threshold for alarm 52 temp5_max_alarm ro remote temperature 4 maximum threshold alarm 53 temp5_min rw remote temperature 4 minimum threshold for alarm 54 temp5_min_alarm ro remote temperature 4 minimum threshold alarm 55 56 Module Parameters 57 ----------------- 58 59 * read_only: int 60 Set to non-zero if you wish to prevent write access to alarm thresholds.