1*4882a593SmuzhiyunKernel driver emc6w201 2*4882a593Smuzhiyun====================== 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunSupported chips: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun * SMSC EMC6W201 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun Prefix: 'emc6w201' 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun Addresses scanned: I2C 0x2c, 0x2d, 0x2e 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun Datasheet: Not public 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunAuthor: Jean Delvare <jdelvare@suse.de> 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunDescription 18*4882a593Smuzhiyun----------- 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunFrom the datasheet: 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun"The EMC6W201 is an environmental monitoring device with automatic fan 23*4882a593Smuzhiyuncontrol capability and enhanced system acoustics for noise suppression. 24*4882a593SmuzhiyunThis ACPI compliant device provides hardware monitoring for up to six 25*4882a593Smuzhiyunvoltages (including its own VCC) and five external thermal sensors, 26*4882a593Smuzhiyunmeasures the speed of up to five fans, and controls the speed of 27*4882a593Smuzhiyunmultiple DC fans using three Pulse Width Modulator (PWM) outputs. Note 28*4882a593Smuzhiyunthat it is possible to control more than three fans by connecting two 29*4882a593Smuzhiyunfans to one PWM output. The EMC6W201 will be available in a 36-pin 30*4882a593SmuzhiyunQFN package." 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunThe device is functionally close to the EMC6D100 series, but is 33*4882a593Smuzhiyunregister-incompatible. 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunThe driver currently only supports the monitoring of the voltages, 36*4882a593Smuzhiyuntemperatures and fan speeds. Limits can be changed. Alarms are not 37*4882a593Smuzhiyunsupported, and neither is fan speed control. 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun 40*4882a593SmuzhiyunKnown Systems With EMC6W201 41*4882a593Smuzhiyun--------------------------- 42*4882a593Smuzhiyun 43*4882a593SmuzhiyunThe EMC6W201 is a rare device, only found on a few systems, made in 44*4882a593Smuzhiyun2005 and 2006. Known systems with this device: 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun* Dell Precision 670 workstation 47*4882a593Smuzhiyun* Gigabyte 2CEWH mainboard 48