Displaying 2 results from an estimated 2 matches for "urb_interrupt".
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2019 Mar 05
2
UPS Requiring URB_INTERRUPT with Megatec Protocol
...dong IDKG) in Oracle VirtualBox (Win7VM) on my Fedora laptop was that
the nut drivers would show values. As soon as the UPSmart was stopped, the
values returned would stay the same and wouldn't update.
Observing the usb 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 'DIG...
2019 Mar 18
0
UPS Requiring URB_INTERRUPT with Megatec Protocol
...d, the values returned would stay the same and wouldn't update.
hmm... this sounds familiar.
You're not related to GitHub issue #674
(https://github.com/networkupstools/nut/issues/674), right?
> Observing the usb 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.
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)....