| 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 |
