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Diffstat (limited to 'Documentation/hwmon/ina2xx.rst')
| -rw-r--r-- | Documentation/hwmon/ina2xx.rst | 62 |
1 files changed, 51 insertions, 11 deletions
diff --git a/Documentation/hwmon/ina2xx.rst b/Documentation/hwmon/ina2xx.rst index ed81f5416331..a3860aae444c 100644 --- a/Documentation/hwmon/ina2xx.rst +++ b/Documentation/hwmon/ina2xx.rst @@ -11,7 +11,7 @@ Supported chips: Datasheet: Publicly available at the Texas Instruments website - http://www.ti.com/ + https://www.ti.com/ * Texas Instruments INA220 @@ -21,7 +21,7 @@ Supported chips: Datasheet: Publicly available at the Texas Instruments website - http://www.ti.com/ + https://www.ti.com/ * Texas Instruments INA226 @@ -31,7 +31,7 @@ Supported chips: Datasheet: Publicly available at the Texas Instruments website - http://www.ti.com/ + https://www.ti.com/ * Texas Instruments INA230 @@ -41,7 +41,7 @@ Supported chips: Datasheet: Publicly available at the Texas Instruments website - http://www.ti.com/ + https://www.ti.com/ * Texas Instruments INA231 @@ -51,7 +51,28 @@ Supported chips: Datasheet: Publicly available at the Texas Instruments website - http://www.ti.com/ + https://www.ti.com/ + + * Texas Instruments INA260 + + Prefix: 'ina260' + + Addresses: I2C 0x40 - 0x4f + + Datasheet: Publicly available at the Texas Instruments website + + https://www.ti.com/ + + * Silergy SY24655 + + Prefix: 'sy24655' + + Addresses: I2C 0x40 - 0x4f + + Datasheet: Publicly available at the Silergy website + + https://us1.silergy.com/ + Author: Lothar Felten <lothar.felten@gmail.com> @@ -72,9 +93,17 @@ INA230 and INA231 are high or low side current shunt and power monitors with an I2C interface. The chips monitor both a shunt voltage drop and bus supply voltage. +INA260 is a high or low side current and power monitor with integrated shunt +resistor. + +The SY24655 is a high- and low-side current shunt and power monitor with an I2C +interface. The SY24655 supports both shunt drop and supply voltage, with +programmable calibration value and conversion times. The SY24655 can also +calculate average power for use in energy conversion. + The shunt value in micro-ohms can be set via platform data or device tree at compile-time or via the shunt_resistor attribute in sysfs at run-time. Please -refer to the Documentation/devicetree/bindings/hwmon/ina2xx.txt for bindings +refer to the Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings if the device tree is used. Additionally ina226 supports update_interval attribute as described in @@ -87,18 +116,22 @@ The actual programmed interval may vary from the desired value. General sysfs entries --------------------- -======================= =============================== +======================= =============================================== in0_input Shunt voltage(mV) channel in1_input Bus voltage(mV) channel curr1_input Current(mA) measurement channel power1_input Power(uW) measurement channel -shunt_resistor Shunt resistance(uOhm) channel -======================= =============================== +shunt_resistor Shunt resistance(uOhm) channel (not for ina260) +======================= =============================================== -Sysfs entries for ina226, ina230 and ina231 only ------------------------------------------------- +Additional sysfs entries for ina226, ina230, ina231, ina260, and sy24655 +------------------------------------------------------------------------ ======================= ==================================================== +curr1_lcrit Critical low current +curr1_crit Critical high current +curr1_lcrit_alarm Current critical low alarm +curr1_crit_alarm Current critical high alarm in0_lcrit Critical low shunt voltage in0_crit Critical high shunt voltage in0_lcrit_alarm Shunt voltage critical low alarm @@ -113,6 +146,13 @@ update_interval data conversion time; affects number of samples used to average results for shunt and bus voltages. ======================= ==================================================== +Sysfs entries for sy24655 only +------------------------------ + +======================= ==================================================== +power1_average average power from last reading to the present. +======================= ==================================================== + .. note:: - Configure `shunt_resistor` before configure `power1_crit`, because power |