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Jean Delvareb0b349a2011-05-25 20:43:33 +02001Kernel driver emc6w201
2======================
3
4Supported chips:
5 * SMSC EMC6W201
6 Prefix: 'emc6w201'
7 Addresses scanned: I2C 0x2c, 0x2d, 0x2e
8 Datasheet: Not public
9
10Author: Jean Delvare <khali@linux-fr.org>
11
12
13Description
14-----------
15
16From the datasheet:
17
18"The EMC6W201 is an environmental monitoring device with automatic fan
19control capability and enhanced system acoustics for noise suppression.
20This ACPI compliant device provides hardware monitoring for up to six
21voltages (including its own VCC) and five external thermal sensors,
22measures the speed of up to five fans, and controls the speed of
23multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note
24that it is possible to control more than three fans by connecting two
25fans to one PWM output. The EMC6W201 will be available in a 36-pin
26QFN package."
27
28The device is functionally close to the EMC6D100 series, but is
29register-incompatible.
30
31The driver currently only supports the monitoring of the voltages,
32temperatures and fan speeds. Limits can be changed. Alarms are not
33supported, and neither is fan speed control.
34
35
36Known Systems With EMC6W201
37---------------------------
38
39The EMC6W201 is a rare device, only found on a few systems, made in
402005 and 2006. Known systems with this device:
41* Dell Precision 670 workstation
42* Gigabyte 2CEWH mainboard