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 http://www.usb.org/developers/hidpage/
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).