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Commit | Line | Data |
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b0b349a8 JD |
1 | Kernel driver emc6w201 |
2 | ====================== | |
3 | ||
4 | Supported chips: | |
5 | * SMSC EMC6W201 | |
6 | Prefix: 'emc6w201' | |
7 | Addresses scanned: I2C 0x2c, 0x2d, 0x2e | |
8 | Datasheet: Not public | |
9 | ||
7c81c60f | 10 | Author: Jean Delvare <jdelvare@suse.de> |
b0b349a8 JD |
11 | |
12 | ||
13 | Description | |
14 | ----------- | |
15 | ||
16 | From the datasheet: | |
17 | ||
18 | "The EMC6W201 is an environmental monitoring device with automatic fan | |
19 | control capability and enhanced system acoustics for noise suppression. | |
20 | This ACPI compliant device provides hardware monitoring for up to six | |
21 | voltages (including its own VCC) and five external thermal sensors, | |
22 | measures the speed of up to five fans, and controls the speed of | |
23 | multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note | |
24 | that it is possible to control more than three fans by connecting two | |
25 | fans to one PWM output. The EMC6W201 will be available in a 36-pin | |
26 | QFN package." | |
27 | ||
28 | The device is functionally close to the EMC6D100 series, but is | |
29 | register-incompatible. | |
30 | ||
31 | The driver currently only supports the monitoring of the voltages, | |
32 | temperatures and fan speeds. Limits can be changed. Alarms are not | |
33 | supported, and neither is fan speed control. | |
34 | ||
35 | ||
36 | Known Systems With EMC6W201 | |
37 | --------------------------- | |
38 | ||
39 | The EMC6W201 is a rare device, only found on a few systems, made in | |
40 | 2005 and 2006. Known systems with this device: | |
41 | * Dell Precision 670 workstation | |
42 | * Gigabyte 2CEWH mainboard |