| 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 |