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authorFelten, Lothar <l-felten@ti.com>2012-05-12 04:36:38 -0400
committerGuenter Roeck <guenter.roeck@ericsson.com>2012-05-22 06:48:02 -0700
commitf7c2fe386ae92b471a0edd4fa4bed7033224b9bf (patch)
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parent9172b5d124c2f54374d8cc5ed6098ecd8fb988cd (diff)
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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>
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+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.