1*7ebd8b66SMauro Carvalho ChehabKernel driver emc6w201 2*7ebd8b66SMauro Carvalho Chehab====================== 3*7ebd8b66SMauro Carvalho Chehab 4*7ebd8b66SMauro Carvalho ChehabSupported chips: 5*7ebd8b66SMauro Carvalho Chehab 6*7ebd8b66SMauro Carvalho Chehab * SMSC EMC6W201 7*7ebd8b66SMauro Carvalho Chehab 8*7ebd8b66SMauro Carvalho Chehab Prefix: 'emc6w201' 9*7ebd8b66SMauro Carvalho Chehab 10*7ebd8b66SMauro Carvalho Chehab Addresses scanned: I2C 0x2c, 0x2d, 0x2e 11*7ebd8b66SMauro Carvalho Chehab 12*7ebd8b66SMauro Carvalho Chehab Datasheet: Not public 13*7ebd8b66SMauro Carvalho Chehab 14*7ebd8b66SMauro Carvalho ChehabAuthor: Jean Delvare <jdelvare@suse.de> 15*7ebd8b66SMauro Carvalho Chehab 16*7ebd8b66SMauro Carvalho Chehab 17*7ebd8b66SMauro Carvalho ChehabDescription 18*7ebd8b66SMauro Carvalho Chehab----------- 19*7ebd8b66SMauro Carvalho Chehab 20*7ebd8b66SMauro Carvalho ChehabFrom the datasheet: 21*7ebd8b66SMauro Carvalho Chehab 22*7ebd8b66SMauro Carvalho Chehab"The EMC6W201 is an environmental monitoring device with automatic fan 23*7ebd8b66SMauro Carvalho Chehabcontrol capability and enhanced system acoustics for noise suppression. 24*7ebd8b66SMauro Carvalho ChehabThis ACPI compliant device provides hardware monitoring for up to six 25*7ebd8b66SMauro Carvalho Chehabvoltages (including its own VCC) and five external thermal sensors, 26*7ebd8b66SMauro Carvalho Chehabmeasures the speed of up to five fans, and controls the speed of 27*7ebd8b66SMauro Carvalho Chehabmultiple DC fans using three Pulse Width Modulator (PWM) outputs. Note 28*7ebd8b66SMauro Carvalho Chehabthat it is possible to control more than three fans by connecting two 29*7ebd8b66SMauro Carvalho Chehabfans to one PWM output. The EMC6W201 will be available in a 36-pin 30*7ebd8b66SMauro Carvalho ChehabQFN package." 31*7ebd8b66SMauro Carvalho Chehab 32*7ebd8b66SMauro Carvalho ChehabThe device is functionally close to the EMC6D100 series, but is 33*7ebd8b66SMauro Carvalho Chehabregister-incompatible. 34*7ebd8b66SMauro Carvalho Chehab 35*7ebd8b66SMauro Carvalho ChehabThe driver currently only supports the monitoring of the voltages, 36*7ebd8b66SMauro Carvalho Chehabtemperatures and fan speeds. Limits can be changed. Alarms are not 37*7ebd8b66SMauro Carvalho Chehabsupported, and neither is fan speed control. 38*7ebd8b66SMauro Carvalho Chehab 39*7ebd8b66SMauro Carvalho Chehab 40*7ebd8b66SMauro Carvalho ChehabKnown Systems With EMC6W201 41*7ebd8b66SMauro Carvalho Chehab--------------------------- 42*7ebd8b66SMauro Carvalho Chehab 43*7ebd8b66SMauro Carvalho ChehabThe EMC6W201 is a rare device, only found on a few systems, made in 44*7ebd8b66SMauro Carvalho Chehab2005 and 2006. Known systems with this device: 45*7ebd8b66SMauro Carvalho Chehab 46*7ebd8b66SMauro Carvalho Chehab* Dell Precision 670 workstation 47*7ebd8b66SMauro Carvalho Chehab* Gigabyte 2CEWH mainboard 48