| Jean Delvare | b0b349a | 2011-05-25 20:43:33 +0200 | [diff] [blame] | 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 | |
| 10 | Author: Jean Delvare <khali@linux-fr.org> |
| 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 |