1Kernel driver adt7411 2===================== 3 4Supported chips: 5 6 * Analog Devices ADT7411 7 8 Prefix: 'adt7411' 9 10 Addresses scanned: 0x48, 0x4a, 0x4b 11 12 Datasheet: Publicly available at the Analog Devices website 13 14Author: Wolfram Sang (based on adt7470 by Darrick J. Wong) 15 16Description 17----------- 18 19This driver implements support for the Analog Devices ADT7411 chip. There may 20be other chips that implement this interface. 21 22The ADT7411 can use an I2C/SMBus compatible 2-wire interface or an 23SPI-compatible 4-wire interface. It provides a 10-bit analog to digital 24converter which measures 1 temperature, vdd and 8 input voltages. It has an 25internal temperature sensor, but an external one can also be connected (one 26loses 2 inputs then). There are high- and low-limit registers for all inputs. 27 28Check the datasheet for details. 29 30sysfs-Interface 31--------------- 32 33================ ================================= 34in0_input vdd voltage input 35in0_min vdd low limit 36in0_max vdd high limit 37in0_alarm vdd alarm 38in[1-8]_input analog 1-8 input 39in[1-8]_min analog input low limit 40in[1-8]_max analog input high limit 41in[1-8]_alarm analog input alarm 42temp1_input internal temperature input 43temp1_min internal temperature low limit 44temp1_max internal temperature high limit 45temp1_min_alarm internal temperature low alarm 46temp1_max_alarm internal temperature high alarm 47================ ================================= 48 49If the external temperature sensor is enabled, the following attributes are 50also available: 51 52================ ================================================ 53temp2_input external temperature input 54temp2_min external temperature low limit 55temp2_max external temperature high limit 56temp2_min_alarm external temperature low alarm 57temp2_max_alarm external temperature high alarm 58temp2_fault external temperature sensor fault 59================ ================================================ 60 61If the external temperature sensor is enabled, analog inputs in1 and in2 are 62not available. 63 64Besides standard interfaces, this driver adds (0 = off, 1 = on): 65 66 ============== ======================================================= 67 adc_ref_vdd Use vdd as reference instead of 2.25 V 68 fast_sampling Sample at 22.5 kHz instead of 1.4 kHz, but drop filters 69 no_average Turn off averaging over 16 samples 70 ============== ======================================================= 71 72Notes 73----- 74 75SPI is not supported yet. 76