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| author | Jean Delvare <khali@linux-fr.org> | 2011-05-25 20:43:33 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2011-05-25 20:43:33 +0200 |
| commit | b0b349a85d3df00a40a8bd398e4a151fd8e91bbe (patch) | |
| tree | 79d2e5d15bb13e349af23cd3602090c9ef92f793 /Documentation/hwmon/emc6w201 | |
| parent | ec693fe5287e1791f4d206e81ebdfdc7d1f8f6b9 (diff) | |
| download | lwn-b0b349a85d3df00a40a8bd398e4a151fd8e91bbe.tar.gz lwn-b0b349a85d3df00a40a8bd398e4a151fd8e91bbe.zip | |
hwmon: New driver for the SMSC EMC6W201
This is a new driver for the SMSC EMC6W201 hardware monitoring device.
The device is functionally close to the EMC6D100 series, but is
register-incompatible.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Harry G McGavran Jr <w5pny@arrl.net>
Tested-by: Jeff Rickman <jrickman@myamigos.us>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'Documentation/hwmon/emc6w201')
| -rw-r--r-- | Documentation/hwmon/emc6w201 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/hwmon/emc6w201 b/Documentation/hwmon/emc6w201 new file mode 100644 index 000000000000..32f355aaf56b --- /dev/null +++ b/Documentation/hwmon/emc6w201 @@ -0,0 +1,42 @@ +Kernel driver emc6w201 +====================== + +Supported chips: + * SMSC EMC6W201 + Prefix: 'emc6w201' + Addresses scanned: I2C 0x2c, 0x2d, 0x2e + Datasheet: Not public + +Author: Jean Delvare <khali@linux-fr.org> + + +Description +----------- + +From the datasheet: + +"The EMC6W201 is an environmental monitoring device with automatic fan +control capability and enhanced system acoustics for noise suppression. +This ACPI compliant device provides hardware monitoring for up to six +voltages (including its own VCC) and five external thermal sensors, +measures the speed of up to five fans, and controls the speed of +multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note +that it is possible to control more than three fans by connecting two +fans to one PWM output. The EMC6W201 will be available in a 36-pin +QFN package." + +The device is functionally close to the EMC6D100 series, but is +register-incompatible. + +The driver currently only supports the monitoring of the voltages, +temperatures and fan speeds. Limits can be changed. Alarms are not +supported, and neither is fan speed control. + + +Known Systems With EMC6W201 +--------------------------- + +The EMC6W201 is a rare device, only found on a few systems, made in +2005 and 2006. Known systems with this device: +* Dell Precision 670 workstation +* Gigabyte 2CEWH mainboard |