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OSCL-LXR

 
 

    


0001 Kernel driver emc6w201
0002 ======================
0003 
0004 Supported chips:
0005 
0006   * SMSC EMC6W201
0007 
0008     Prefix: 'emc6w201'
0009 
0010     Addresses scanned: I2C 0x2c, 0x2d, 0x2e
0011 
0012     Datasheet: Not public
0013 
0014 Author: Jean Delvare <jdelvare@suse.de>
0015 
0016 
0017 Description
0018 -----------
0019 
0020 From the datasheet:
0021 
0022 "The EMC6W201 is an environmental monitoring device with automatic fan
0023 control capability and enhanced system acoustics for noise suppression.
0024 This ACPI compliant device provides hardware monitoring for up to six
0025 voltages (including its own VCC) and five external thermal sensors,
0026 measures the speed of up to five fans, and controls the speed of
0027 multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note
0028 that it is possible to control more than three fans by connecting two
0029 fans to one PWM output. The EMC6W201 will be available in a 36-pin
0030 QFN package."
0031 
0032 The device is functionally close to the EMC6D100 series, but is
0033 register-incompatible.
0034 
0035 The driver currently only supports the monitoring of the voltages,
0036 temperatures and fan speeds. Limits can be changed. Alarms are not
0037 supported, and neither is fan speed control.
0038 
0039 
0040 Known Systems With EMC6W201
0041 ---------------------------
0042 
0043 The EMC6W201 is a rare device, only found on a few systems, made in
0044 2005 and 2006. Known systems with this device:
0045 
0046 * Dell Precision 670 workstation
0047 * Gigabyte 2CEWH mainboard