Kernel driver max15301

Supported chips:

Author: Erik Rosen <erik.rosen@metormote.com>

Description

This driver supports hardware monitoring for Maxim MAX15301 controller chip and compatible modules.

The driver is a client driver to the core PMBus driver. Please see Kernel driver pmbus and Documentation.hwmon/pmbus-core 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.

Platform data support

The driver supports standard PMBus driver platform data.

Module parameters

delay

The controller requires a minimum interval between I2C bus accesses. The default interval is set to 100 us. For manual override, the driver provides a writeable module parameter, ‘delay’, which can be used to set the interval to a value between 0 and 65,535 microseconds.

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_lcrit

Critical minimum input voltage.

in1_crit

Critical maximum input voltage.

in1_lcrit_alarm

Input voltage critical low alarm.

in1_crit_alarm

Input voltage critical high alarm.

in2_label

“vout1”

in2_input

Measured output voltage.

in2_lcrit

Critical minimum output Voltage.

in2_crit

Critical maximum output voltage.

in2_lcrit_alarm

Critical output voltage critical low alarm.

in2_crit_alarm

Critical output voltage critical high alarm.

curr1_label

“iout1”

curr1_input

Measured output current.

curr1_crit

Critical maximum output current.

curr1_crit_alarm

Output current critical high alarm.

temp1_input

Measured maximum temperature of all phases.

temp1_max

Maximum temperature limit.

temp1_max_alarm

High temperature alarm.

temp1_crit

Critical maximum temperature limit.

temp1_crit_alarm

Critical maximum temperature alarm.