1 Kernel driver adt7411 2 ===================== 3 4 Supported 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 14 Author: Wolfram Sang (based on adt7470 by Darrick J. Wong) 15 16 Description 17 ----------- 18 19 This driver implements support for the Analog Devices ADT7411 chip. There may 20 be other chips that implement this interface. 21 22 The ADT7411 can use an I2C/SMBus compatible 2-wire interface or an 23 SPI-compatible 4-wire interface. It provides a 10-bit analog to digital 24 converter which measures 1 temperature, vdd and 8 input voltages. It has an 25 internal temperature sensor, but an external one can also be connected (one 26 loses 2 inputs then). There are high- and low-limit registers for all inputs. 27 28 Check the datasheet for details. 29 30 sysfs-Interface 31 --------------- 32 33 ================ ================= 34 in0_input vdd voltage input 35 in[1-8]_input analog 1-8 input 36 temp1_input temperature input 37 ================ ================= 38 39 Besides 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 47 Notes 48 ----- 49 50 SPI, external temperature sensor and limit registers are not supported yet.
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