Kernel driver lm25066¶
Supported chips:
TI LM25056
Prefix: 'lm25056'
Addresses scanned: -
Datasheets:
National Semiconductor LM25066
Prefix: 'lm25066'
Addresses scanned: -
Datasheets:
National Semiconductor LM5064
Prefix: 'lm5064'
Addresses scanned: -
Datasheet:
National Semiconductor LM5066
Prefix: 'lm5066'
Addresses scanned: -
Datasheet:
Texas Instruments LM5066I
Prefix: 'lm5066i'
Addresses scanned: -
Datasheet:
Author: Guenter Roeck <linux@roeck-us.net>
Description¶
This driver supports hardware monitoring for National Semiconductor / TI LM25056, LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring, Control, and Protection ICs.
The driver is a client driver to the core PMBus driver. Please see Kernel driver pmbus for details on PMBus client drivers.
Usage Notes¶
This driver does not auto-detect devices. You will have to instantiate the devices explicitly. Please see How to instantiate I2C devices for details.
The shunt (sense) resistor value can be configured by a device tree property; see Documentation/devicetree/bindings/hwmon/pmbus/ti,lm25066.yaml for details.
Platform data support¶
The driver supports standard PMBus driver platform data.
Sysfs entries¶
The following attributes are supported. Limits are read-write; all other attributes are read-only.
in1_label |
"vin" |
in1_input |
Measured input voltage. |
in1_average |
Average measured input voltage. |
in1_min |
Minimum input voltage. |
in1_max |
Maximum input voltage. |
in1_min_alarm |
Input voltage low alarm. |
in1_max_alarm |
Input voltage high alarm. |
in2_label |
"vmon" |
in2_input |
Measured voltage on VAUX pin |
in2_min |
Minimum VAUX voltage (LM25056 only). |
in2_max |
Maximum VAUX voltage (LM25056 only). |
in2_min_alarm |
VAUX voltage low alarm (LM25056 only). |
in2_max_alarm |
VAUX voltage high alarm (LM25056 only). |
in3_label |
"vout1" Not supported on LM25056. |
in3_input |
Measured output voltage. |
in3_average |
Average measured output voltage. |
in3_min |
Minimum output voltage. |
in3_min_alarm |
Output voltage low alarm. |
curr1_label |
"iin" |
curr1_input |
Measured input current. |
curr1_average |
Average measured input current. |
curr1_max |
Maximum input current. |
curr1_max_alarm |
Input current high alarm. |
power1_label |
"pin" |
power1_input |
Measured input power. |
power1_average |
Average measured input power. |
power1_max |
Maximum input power limit. |
power1_alarm |
Input power alarm |
power1_input_highest |
Historical maximum power. |
power1_reset_history |
Write any value to reset maximum power history. |
temp1_input |
Measured temperature. |
temp1_max |
Maximum temperature. |
temp1_crit |
Critical high temperature. |
temp1_max_alarm |
Chip temperature high alarm. |
temp1_crit_alarm |
Chip temperature critical high alarm. |