swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
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Tip revision: 9ff01193a20d391e8dbce4403dd5ef87c7eaaca6 authored by Linus Torvalds on 18 November 2018, 21:33:44 UTC
Linux 4.20-rc3
Linux 4.20-rc3
Tip revision: 9ff0119
ina3221
Kernel driver ina3221
=====================
Supported chips:
* Texas Instruments INA3221
Prefix: 'ina3221'
Addresses: I2C 0x40 - 0x43
Datasheet: Publicly available at the Texas Instruments website
http://www.ti.com/
Author: Andrew F. Davis <afd@ti.com>
Description
-----------
The Texas Instruments INA3221 monitors voltage, current, and power on the high
side of up to three D.C. power supplies. The INA3221 monitors both shunt drop
and supply voltage, with programmable conversion times and averaging, current
and power are calculated host-side from these.
Sysfs entries
-------------
in[123]_label Voltage channel labels
in[123]_enable Voltage channel enable controls
in[123]_input Bus voltage(mV) channels
curr[123]_input Current(mA) measurement channels
shunt[123]_resistor Shunt resistance(uOhm) channels
curr[123]_crit Critical alert current(mA) setting, activates the
corresponding alarm when the respective current
is above this value
curr[123]_crit_alarm Critical alert current limit exceeded
curr[123]_max Warning alert current(mA) setting, activates the
corresponding alarm when the respective current
average is above this value.
curr[123]_max_alarm Warning alert current limit exceeded
in[456]_input Shunt voltage(uV) for channels 1, 2, and 3 respectively