Kernel driver max16601

Supported chips:

  • Maxim MAX16508

    Prefix: ‘max16508’

    Addresses scanned: -

    Datasheet: Not published

  • Maxim MAX16601

    Prefix: ‘max16601’

    Addresses scanned: -

    Datasheet: Not published

Author: Guenter Roeck <>


This driver supports the MAX16508 VR13 Dual-Output Voltage Regulator as well as the MAX16601 VR13.HC Dual-Output Voltage Regulator chipsets.

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.

Platform data support

The driver supports standard PMBus driver platform data.

Sysfs entries

The following attributes are supported.

in1_label “vin1”
in1_input VCORE input voltage.
in1_alarm Input voltage alarm.
in2_label “vout1”
in2_input VCORE output voltage.
in2_alarm Output voltage alarm.
curr1_label “iin1”
curr1_input VCORE input current, derived from duty cycle and output current.
curr1_max Maximum input current.
curr1_max_alarm Current high alarm.
curr[P+2]_label “iin1.P”
curr[P+2]_input VCORE phase P input current.
curr[N+2]_label “iin2”
curr[N+2]_input VCORE input current, derived from sensor element. ‘N’ is the number of enabled/populated phases.
curr[N+3]_label “iin3”
curr[N+3]_input VSA input current.
curr[N+4]_label “iout1”
curr[N+4]_input VCORE output current.
curr[N+4]_crit Critical output current.
curr[N+4]_crit_alarm Output current critical alarm.
curr[N+4]_max Maximum output current.
curr[N+4]_max_alarm Output current high alarm.
curr[N+P+5]_label “iout1.P”
curr[N+P+5]_input VCORE phase P output current.
curr[2*N+5]_label “iout3”
curr[2*N+5]_input VSA output current.
curr[2*N+5]_highest Historical maximum VSA output current.
curr[2*N+5]_reset_history Write any value to reset curr21_highest.
curr[2*N+5]_crit Critical output current.
curr[2*N+5]_crit_alarm Output current critical alarm.
curr[2*N+5]_max Maximum output current.
curr[2*N+5]_max_alarm Output current high alarm.
power1_label “pin1”
power1_input Input power, derived from duty cycle and output current.
power1_alarm Input power alarm.
power2_label “pin2”
power2_input Input power, derived from input current sensor.
power3_label “pout”
power3_input Output power.
temp1_input VCORE temperature.
temp1_crit Critical high temperature.
temp1_crit_alarm Chip temperature critical high alarm.
temp1_max Maximum temperature.
temp1_max_alarm Chip temperature high alarm.
temp2_input TSENSE_0 temperature
temp3_input TSENSE_1 temperature
temp4_input TSENSE_2 temperature
temp5_input TSENSE_3 temperature
temp6_input VSA temperature.
temp6_crit Critical high temperature.
temp6_crit_alarm Chip temperature critical high alarm.
temp6_max Maximum temperature.
temp6_max_alarm Chip temperature high alarm.