2016-06-10 15:32:33 +00:00
|
|
|
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
|
|
|
|
|
-------------
|
|
|
|
|
|
2018-10-02 01:05:23 +00:00
|
|
|
in[123]_label Voltage channel labels
|
|
|
|
|
in[123]_enable Voltage channel enable controls
|
2016-06-10 15:32:33 +00:00
|
|
|
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
|
