forked from luck/tmp_suning_uos_patched
31e7ad74f6
Adding another way that is device tree to pass the shunt resistor value to driver except for platform data. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> [Guenter Roeck: Added missing of.h include] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
50 lines
1.6 KiB
Plaintext
50 lines
1.6 KiB
Plaintext
Kernel driver ina2xx
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====================
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Supported chips:
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* Texas Instruments INA219
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Prefix: 'ina219'
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Addresses: I2C 0x40 - 0x4f
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Datasheet: Publicly available at the Texas Instruments website
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http://www.ti.com/
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* Texas Instruments INA220
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Prefix: 'ina220'
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Addresses: I2C 0x40 - 0x4f
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Datasheet: Publicly available at the Texas Instruments website
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http://www.ti.com/
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* Texas Instruments INA226
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Prefix: 'ina226'
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Addresses: I2C 0x40 - 0x4f
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Datasheet: Publicly available at the Texas Instruments website
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http://www.ti.com/
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* Texas Instruments INA230
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Prefix: 'ina230'
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Addresses: I2C 0x40 - 0x4f
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Datasheet: Publicly available at the Texas Instruments website
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http://www.ti.com/
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Author: Lothar Felten <l-felten@ti.com>
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Description
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-----------
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The INA219 is a high-side current shunt and power monitor with an I2C
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interface. The INA219 monitors both shunt drop and supply voltage, with
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programmable conversion times and filtering.
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The INA220 is a high or low side current shunt and power monitor with an I2C
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interface. The INA220 monitors both shunt drop and supply voltage.
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The INA226 is a current shunt and power monitor with an I2C interface.
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The INA226 monitors both a shunt voltage drop and bus supply voltage.
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The INA230 is a high or low side current shunt and power monitor with an I2C
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interface. The INA230 monitors both a shunt voltage drop and bus supply voltage.
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The shunt value in micro-ohms can be set via platform data or device tree.
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Please refer to the Documentation/devicetree/bindings/i2c/ina2xx.txt for bindings
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if the device tree is used.
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