Commit | Line | Data |
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7cb6dcff AD |
1 | Kernel driver ina3221 |
2 | ===================== | |
3 | ||
4 | Supported chips: | |
5 | * Texas Instruments INA3221 | |
6 | Prefix: 'ina3221' | |
7 | Addresses: I2C 0x40 - 0x43 | |
8 | Datasheet: Publicly available at the Texas Instruments website | |
9 | http://www.ti.com/ | |
10 | ||
11 | Author: Andrew F. Davis <afd@ti.com> | |
12 | ||
13 | Description | |
14 | ----------- | |
15 | ||
16 | The Texas Instruments INA3221 monitors voltage, current, and power on the high | |
17 | side of up to three D.C. power supplies. The INA3221 monitors both shunt drop | |
18 | and supply voltage, with programmable conversion times and averaging, current | |
19 | and power are calculated host-side from these. | |
20 | ||
21 | Sysfs entries | |
22 | ------------- | |
23 | ||
24 | in[123]_input Bus voltage(mV) channels | |
25 | curr[123]_input Current(mA) measurement channels | |
26 | shunt[123]_resistor Shunt resistance(uOhm) channels | |
27 | curr[123]_crit Critical alert current(mA) setting, activates the | |
28 | corresponding alarm when the respective current | |
29 | is above this value | |
30 | curr[123]_crit_alarm Critical alert current limit exceeded | |
31 | curr[123]_max Warning alert current(mA) setting, activates the | |
32 | corresponding alarm when the respective current | |
33 | average is above this value. | |
34 | curr[123]_max_alarm Warning alert current limit exceeded | |
35 | in[456]_input Shunt voltage(uV) for channels 1, 2, and 3 respectively |