UPD(4)

NAME
upd - USB Power Devices sensor

SYNOPSIS
upd* at uhidev?

DESCRIPTION
The upd driver provides support for monitoring various sensors provided by USB Power Devices (such as a UPS). Supported sensor values are made available via the sysctl(8) interface.

The following sensors are supported by the driver:

BatteryPresent
ShutdownImminent
ACPresent
Overload
RelativeStateOfCharge
AbsoluteStateOfCharge
RemainingCapacity
FullChargeCapacity
Charging
Discharging
AtRateTimeToFull
AtRateTimeToEmpty
RunTimeToEmpty
NeedReplacement

SEE ALSO
intro(4), uhidev(4), sensorsd.conf(5), sensorsd(8), sysctl(8)

The USB Power Devices specification can be found at: https://www.usb.org/hid

HISTORY
The upd driver first appeared in OpenBSD 5.6.

AUTHORS
The upd driver was written by Andre de Oliveira.

BUGS
The upd driver does not indicate device health via aggregate or individual sensor status. Users who wish to monitor upd status using sensorsd(8) must manually establish “high” and “low” limits for sensor values of interest via sensorsd.conf(5).