adt7411.rst (1508B)
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 35in[1-8]_input analog 1-8 input 36temp1_input temperature input 37================ ================= 38 39Besides standard interfaces, this driver adds (0 = off, 1 = on): 40 41 ============== ======================================================= 42 adc_ref_vdd Use vdd as reference instead of 2.25 V 43 fast_sampling Sample at 22.5 kHz instead of 1.4 kHz, but drop filters 44 no_average Turn off averaging over 16 samples 45 ============== ======================================================= 46 47Notes 48----- 49 50SPI, external temperature sensor and limit registers are not supported yet.