blob: a0bcd867a0f5aec0b26786e46c17ae025957ce22 [file] [log] [blame]
.. SPDX-License-Identifier: GPL-2.0
Kernel driver ltc2992
Supported chips:
* Linear Technology LTC2992
Prefix: 'ltc2992'
Author: Alexandru Tachici <>
This driver supports hardware monitoring for Linear Technology LTC2992 power monitor.
LTC2992 is a rail-to-rail system monitor that measures current,
voltage, and power of two supplies.
Two ADCs simultaneously measure each supply's current. A third ADC monitors
the input voltages and four auxiliary external voltages.
Sysfs entries
The following attributes are supported. Limits are read-write,
all other attributes are read-only.
in_reset_history Reset all highest/lowest values.
inX_input Measured voltage.
inX_lowest Minimum measured voltage.
inX_highest Maximum measured voltage.
inX_min Minimum voltage allowed.
inX_max Maximum voltage allowed.
inX_min_alarm An undervoltage occurred. Cleared on read.
inX_max_alarm An overvoltage occurred. Cleared on read.
currX_input Measured current.
currX_lowest Minimum measured current.
currX_highest Maximum measured current.
currX_min Minimum current allowed.
currX_max Maximum current allowed.
currX_min_alarm An undercurrent occurred. Cleared on read.
currX_max_alarm An overcurrent occurred. Cleared on read.
powerX_input Measured power.
powerX_input_lowest Minimum measured voltage.
powerX_input_highest Maximum measured voltage.
powerX_min Minimum power.
powerX_max Maximum power.
powerX_min_alarm An underpower occurred. Cleared on read.
powerX_max_alarm An overpower occurred. Cleared on read.