| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 1 | Kernel driver adt7411 |
| 2 | ===================== |
| 3 | |
| 4 | Supported chips: |
| Mauro Carvalho Chehab | b04f2f7 | 2019-04-17 06:46:28 -0300 | [diff] [blame] | 5 | |
| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 6 | * Analog Devices ADT7411 |
| Mauro Carvalho Chehab | b04f2f7 | 2019-04-17 06:46:28 -0300 | [diff] [blame] | 7 | |
| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 8 | Prefix: 'adt7411' |
| Mauro Carvalho Chehab | b04f2f7 | 2019-04-17 06:46:28 -0300 | [diff] [blame] | 9 | |
| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 10 | Addresses scanned: 0x48, 0x4a, 0x4b |
| Mauro Carvalho Chehab | b04f2f7 | 2019-04-17 06:46:28 -0300 | [diff] [blame] | 11 | |
| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 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 | |
| Mauro Carvalho Chehab | b04f2f7 | 2019-04-17 06:46:28 -0300 | [diff] [blame] | 33 | ================ ================= |
| 34 | in0_input vdd voltage input |
| 35 | in[1-8]_input analog 1-8 input |
| 36 | temp1_input temperature input |
| 37 | ================ ================= |
| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 38 | |
| 39 | Besides standard interfaces, this driver adds (0 = off, 1 = on): |
| 40 | |
| Mauro Carvalho Chehab | b04f2f7 | 2019-04-17 06:46:28 -0300 | [diff] [blame] | 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 | ============== ======================================================= |
| Wolfram Sang | d84ca5b | 2010-03-05 22:17:23 +0100 | [diff] [blame] | 46 | |
| 47 | Notes |
| 48 | ----- |
| 49 | |
| 50 | SPI, external temperature sensor and limit registers are not supported yet. |