phoenix-upshid

Simple driver for reading data from Phoenixtec ("Amazon Basics") UPSes written in c

Why?

A while ago I bought a UPS (Uninterruptible power supply) from Amazon Basics. I tried multiple drivers for it, but they all had their problems:

• NUT tended to mess up the USB connection after some days to a point where you had to unplug and re-plug the USB cable of the UPS
• UPower had a stable connection, battery percentage was updated in real-time, but the charging state was frozen, displaying fully-charged when UPS was at 5% charge or displaying charging when UPS was already at 100%

So I tried writing dirty fixes for both of those drivers, which would reset the USB connection when detecting such problem. But it wasn't as stable as I had hoped.

At the end I reverse-engineered the USB-HID protocol of the UPS and wrote my own driver for it in c, which has the reset-capability built-in. I'm not at all into c driver development, so use this at your own risk, as the license already states: "WITHOUT WARRANTY OF ANY KIND"!

How to use

Download and extract source and compile:

$ wget https://github.com/DrMaxNix/phoenix-upshid/archive/refs/tags/1.0.0.tar.gz
$ tar xf 1.0.0.tar.gz
$ cd phoenix-upshid-1.0.0
$ gcc -o phoenix-upshid phoenix-upshid.c

OPTIONALLY copy to $PATH:

# cp phoenix-upshid /usr/local/bin/

Print device data of device 06da:ffff (and try usb reset):

# ./phoenix-upshid -a 06da:ffff