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Based on kernel version 4.1. Page generated on 2015-06-28 12:12 EST.

1	Kernel driver ina2xx
2	====================
3	
4	Supported chips:
5	  * Texas Instruments INA219
6	    Prefix: 'ina219'
7	    Addresses: I2C 0x40 - 0x4f
8	    Datasheet: Publicly available at the Texas Instruments website
9	               http://www.ti.com/
10	
11	  * Texas Instruments INA220
12	    Prefix: 'ina220'
13	    Addresses: I2C 0x40 - 0x4f
14	    Datasheet: Publicly available at the Texas Instruments website
15	               http://www.ti.com/
16	
17	  * Texas Instruments INA226
18	    Prefix: 'ina226'
19	    Addresses: I2C 0x40 - 0x4f
20	    Datasheet: Publicly available at the Texas Instruments website
21	               http://www.ti.com/
22	
23	  * Texas Instruments INA230
24	    Prefix: 'ina230'
25	    Addresses: I2C 0x40 - 0x4f
26	    Datasheet: Publicly available at the Texas Instruments website
27	               http://www.ti.com/
28	
29	  * Texas Instruments INA231
30	    Prefix: 'ina231'
31	    Addresses: I2C 0x40 - 0x4f
32	    Datasheet: Publicly available at the Texas Instruments website
33	               http://www.ti.com/
34	
35	Author: Lothar Felten <l-felten@ti.com>
36	
37	Description
38	-----------
39	
40	The INA219 is a high-side current shunt and power monitor with an I2C
41	interface. The INA219 monitors both shunt drop and supply voltage, with
42	programmable conversion times and filtering.
43	
44	The INA220 is a high or low side current shunt and power monitor with an I2C
45	interface. The INA220 monitors both shunt drop and supply voltage.
46	
47	The INA226 is a current shunt and power monitor with an I2C interface.
48	The INA226 monitors both a shunt voltage drop and bus supply voltage.
49	
50	INA230 and INA231 are high or low side current shunt and power monitors
51	with an I2C interface. The chips monitor both a shunt voltage drop and
52	bus supply voltage.
53	
54	The shunt value in micro-ohms can be set via platform data or device tree at
55	compile-time or via the shunt_resistor attribute in sysfs at run-time. Please
56	refer to the Documentation/devicetree/bindings/i2c/ina2xx.txt for bindings
57	if the device tree is used.
58	
59	Additionally ina226 supports update_interval attribute as described in
60	Documentation/hwmon/sysfs-interface. Internally the interval is the sum of
61	bus and shunt voltage conversion times multiplied by the averaging rate. We
62	don't touch the conversion times and only modify the number of averages. The
63	lower limit of the update_interval is 2 ms, the upper limit is 2253 ms.
64	The actual programmed interval may vary from the desired value.
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