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| author | Felten, Lothar <l-felten@ti.com> | 2012-05-12 04:36:38 -0400 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2012-05-22 06:48:02 -0700 |
| commit | f7c2fe386ae92b471a0edd4fa4bed7033224b9bf (patch) | |
| tree | 8cb48fef02388eb5e64314aeb10143e5c20833cc /Documentation | |
| parent | 9172b5d124c2f54374d8cc5ed6098ecd8fb988cd (diff) | |
| download | linux-f7c2fe386ae92b471a0edd4fa4bed7033224b9bf.tar.bz2 | |
hwmon: INA219 and INA226 support
Add support for the Texas Instruments INA219 and INA226 power monitors.
Signed-off-by: Lothar Felten <l-felten@ti.com>
[guenter.roeck@ericsson.com: formatting cleanup; check for smbus word data;
select PGA=8 for INA219]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/ina2xx | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/hwmon/ina2xx b/Documentation/hwmon/ina2xx new file mode 100644 index 000000000000..f50a6cc27616 --- /dev/null +++ b/Documentation/hwmon/ina2xx @@ -0,0 +1,29 @@ +Kernel driver ina2xx +==================== + +Supported chips: + * Texas Instruments INA219 + Prefix: 'ina219' + Addresses: I2C 0x40 - 0x4f + Datasheet: Publicly available at the Texas Instruments website + http://www.ti.com/ + + * Texas Instruments INA226 + Prefix: 'ina226' + Addresses: I2C 0x40 - 0x4f + Datasheet: Publicly available at the Texas Instruments website + http://www.ti.com/ + +Author: Lothar Felten <l-felten@ti.com> + +Description +----------- + +The INA219 is a high-side current shunt and power monitor with an I2C +interface. The INA219 monitors both shunt drop and supply voltage, with +programmable conversion times and filtering. + +The INA226 is a current shunt and power monitor with an I2C interface. +The INA226 monitors both a shunt voltage drop and bus supply voltage. + +The shunt value in micro-ohms can be set via platform data. |