17ebd8b66SMauro Carvalho ChehabKernel driver emc6w201 27ebd8b66SMauro Carvalho Chehab====================== 37ebd8b66SMauro Carvalho Chehab 47ebd8b66SMauro Carvalho ChehabSupported chips: 57ebd8b66SMauro Carvalho Chehab 67ebd8b66SMauro Carvalho Chehab * SMSC EMC6W201 77ebd8b66SMauro Carvalho Chehab 87ebd8b66SMauro Carvalho Chehab Prefix: 'emc6w201' 97ebd8b66SMauro Carvalho Chehab 107ebd8b66SMauro Carvalho Chehab Addresses scanned: I2C 0x2c, 0x2d, 0x2e 117ebd8b66SMauro Carvalho Chehab 127ebd8b66SMauro Carvalho Chehab Datasheet: Not public 137ebd8b66SMauro Carvalho Chehab 147ebd8b66SMauro Carvalho ChehabAuthor: Jean Delvare <jdelvare@suse.de> 157ebd8b66SMauro Carvalho Chehab 167ebd8b66SMauro Carvalho Chehab 177ebd8b66SMauro Carvalho ChehabDescription 187ebd8b66SMauro Carvalho Chehab----------- 197ebd8b66SMauro Carvalho Chehab 207ebd8b66SMauro Carvalho ChehabFrom the datasheet: 217ebd8b66SMauro Carvalho Chehab 227ebd8b66SMauro Carvalho Chehab"The EMC6W201 is an environmental monitoring device with automatic fan 237ebd8b66SMauro Carvalho Chehabcontrol capability and enhanced system acoustics for noise suppression. 247ebd8b66SMauro Carvalho ChehabThis ACPI compliant device provides hardware monitoring for up to six 257ebd8b66SMauro Carvalho Chehabvoltages (including its own VCC) and five external thermal sensors, 267ebd8b66SMauro Carvalho Chehabmeasures the speed of up to five fans, and controls the speed of 277ebd8b66SMauro Carvalho Chehabmultiple DC fans using three Pulse Width Modulator (PWM) outputs. Note 287ebd8b66SMauro Carvalho Chehabthat it is possible to control more than three fans by connecting two 297ebd8b66SMauro Carvalho Chehabfans to one PWM output. The EMC6W201 will be available in a 36-pin 307ebd8b66SMauro Carvalho ChehabQFN package." 317ebd8b66SMauro Carvalho Chehab 327ebd8b66SMauro Carvalho ChehabThe device is functionally close to the EMC6D100 series, but is 337ebd8b66SMauro Carvalho Chehabregister-incompatible. 347ebd8b66SMauro Carvalho Chehab 357ebd8b66SMauro Carvalho ChehabThe driver currently only supports the monitoring of the voltages, 367ebd8b66SMauro Carvalho Chehabtemperatures and fan speeds. Limits can be changed. Alarms are not 377ebd8b66SMauro Carvalho Chehabsupported, and neither is fan speed control. 387ebd8b66SMauro Carvalho Chehab 397ebd8b66SMauro Carvalho Chehab 407ebd8b66SMauro Carvalho ChehabKnown Systems With EMC6W201 417ebd8b66SMauro Carvalho Chehab--------------------------- 427ebd8b66SMauro Carvalho Chehab 437ebd8b66SMauro Carvalho ChehabThe EMC6W201 is a rare device, only found on a few systems, made in 447ebd8b66SMauro Carvalho Chehab2005 and 2006. Known systems with this device: 457ebd8b66SMauro Carvalho Chehab 467ebd8b66SMauro Carvalho Chehab* Dell Precision 670 workstation 477ebd8b66SMauro Carvalho Chehab* Gigabyte 2CEWH mainboard 48