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UPD(4) Device Drivers Manual UPD(4)

upd
USB Power Devices sensor

upd* at uhidev?

The upd driver exposes data from USB Power Devices (such as an UPS), as hardware sensors via sysctl(3).
The following sensors are provided by the upd driver, which can be monitored using sensorsd(8):

intro(4), uhidev(4), sensorsd(8), sysctl(8)

The upd driver first appeared in OpenBSD 5.6.

The upd driver was written by Andre de Oliveira.
March 19, 2014 OpenBSD-5.6