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...chatter in wireshark showed that the UPSmart program received and sent an URB_INTERRUPT to 0x81 EP. This was happening in a pattern of receive/send URB_INTERRUPT followed by 5 GET_DESCRIPTOR request/respond. The UPS is cheap and cheerful, details can be found here https://www.jaycar.com.au/650va-390w-line-interactive-ups-with-lcd-and-usb/p/MP5205 The badge on the front says 'DIGITECH Computer', model MP5205 I opened the case up and removed the comms board, but there's nothing much to go on. I was able to get details off the only IC on the board, but it's a generic microcontrol...

...IPTOR request/respond. This was the same thing I got to, the last time I looked into that (after #307, there have been some other topics on the lists or on GitHub, I can't remember exactly now). > The UPS is cheap and cheerful, details can be found here > https://www.jaycar.com.au/650va-390w-line-interactive-ups-with-lcd-and-usb/p/MP5205 > The badge on the front says 'DIGITECH Computer', model MP5205 > > I opened the case up and removed the comms board, but there's nothing much to go on. I was able to get details off the only IC on the board, but it's a generi...