projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b0b349a8 JD |
1 | Kernel driver emc6w201 |
| 2 | ====================== | |
| 3 | ||
| 4 | Supported chips: | |
| b04f2f7d | 5 | |
| b0b349a8 | 6 | * SMSC EMC6W201 |
| b04f2f7d | 7 | |
| b0b349a8 | 8 | Prefix: 'emc6w201' |
| b04f2f7d | 9 | |
| b0b349a8 | 10 | Addresses scanned: I2C 0x2c, 0x2d, 0x2e |
| b04f2f7d | 11 | |
| b0b349a8 JD |
12 | Datasheet: Not public |
| 13 | ||
| 7c81c60f | 14 | Author: Jean Delvare <jdelvare@suse.de> |
| b0b349a8 JD |
15 | |
| 16 | ||
| 17 | Description | |
| 18 | ----------- | |
| 19 | ||
| 20 | From the datasheet: | |
| 21 | ||
| 22 | "The EMC6W201 is an environmental monitoring device with automatic fan | |
| 23 | control capability and enhanced system acoustics for noise suppression. | |
| 24 | This ACPI compliant device provides hardware monitoring for up to six | |
| 25 | voltages (including its own VCC) and five external thermal sensors, | |
| 26 | measures the speed of up to five fans, and controls the speed of | |
| 27 | multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note | |
| 28 | that it is possible to control more than three fans by connecting two | |
| 29 | fans to one PWM output. The EMC6W201 will be available in a 36-pin | |
| 30 | QFN package." | |
| 31 | ||
| 32 | The device is functionally close to the EMC6D100 series, but is | |
| 33 | register-incompatible. | |
| 34 | ||
| 35 | The driver currently only supports the monitoring of the voltages, | |
| 36 | temperatures and fan speeds. Limits can be changed. Alarms are not | |
| 37 | supported, and neither is fan speed control. | |
| 38 | ||
| 39 | ||
| 40 | Known Systems With EMC6W201 | |
| 41 | --------------------------- | |
| 42 | ||
| 43 | The EMC6W201 is a rare device, only found on a few systems, made in | |
| 44 | 2005 and 2006. Known systems with this device: | |
| b04f2f7d | 45 | |
| b0b349a8 JD |
46 | * Dell Precision 670 workstation |
| 47 | * Gigabyte 2CEWH mainboard |