projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 7f15b664 RM |
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> | |
| 7c81c60f | 22 | Jean Delvare <jdelvare@suse.de> |
| 7f15b664 RM |
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. |