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1 | Kernel driver lm92 | ||
2 | ================== | ||
3 | |||
4 | Supported chips: | ||
5 | * National Semiconductor LM92 | ||
6 | Prefix: 'lm92' | ||
7 | Addresses scanned: I2C 0x48 - 0x4b | ||
8 | Datasheet: http://www.national.com/pf/LM/LM92.html | ||
9 | * National Semiconductor LM76 | ||
10 | Prefix: 'lm92' | ||
11 | Addresses scanned: none, force parameter needed | ||
12 | Datasheet: http://www.national.com/pf/LM/LM76.html | ||
13 | * Maxim MAX6633/MAX6634/MAX6635 | ||
14 | Prefix: 'lm92' | ||
15 | Addresses scanned: I2C 0x48 - 0x4b | ||
16 | MAX6633 with address in 0x40 - 0x47, 0x4c - 0x4f needs force parameter | ||
17 | and MAX6634 with address in 0x4c - 0x4f needs force parameter | ||
18 | Datasheet: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3074 | ||
19 | |||
20 | Authors: | ||
21 | Abraham van der Merwe <abraham@2d3d.co.za> | ||
22 | Jean Delvare <khali@linux-fr.org> | ||
23 | |||
24 | |||
25 | Description | ||
26 | ----------- | ||
27 | |||
28 | This driver implements support for the National Semiconductor LM92 | ||
29 | temperature sensor. | ||
30 | |||
31 | Each LM92 temperature sensor supports a single temperature sensor. There are | ||
32 | alarms for high, low, and critical thresholds. There's also an hysteresis to | ||
33 | control the thresholds for resetting alarms. | ||
34 | |||
35 | Support was added later for the LM76 and Maxim MAX6633/MAX6634/MAX6635, | ||
36 | which are mostly compatible. They have not all been tested, so you | ||
37 | may need to use the force parameter. | ||