[Nut-upsuser] HP R1500 G3 problems

Charles Lepple clepple at gmail.com
Wed Aug 7 12:10:55 UTC 2013

On Aug 7, 2013, at 7:40 AM, Jan Phillip Greimann wrote:

> I tried to set up nut with our new arrived HP R1500 G3 UPS but there is a failure with the usb connection. After trying "/lib/nut/usbhid-ups -DD -a hp1500" the log says there are "libusb_get_interrupt: Connecion timed out".

If you start upsd, what does "upsc hp1500" return?

There are two ways to fetch values from a HID UPS - control messages over EP0 (more overhead), and interrupt transfers (usually over EP1IN). It looks like the interrupt transfers are timing out, but after that, the "Quick update" seems to get some normal-looking values via control messages.

It is possible that we are not using the right interrupt endpoint, or maybe the UPS does not use it at all (which is the case for some recent APC units).

What does "sudo lsusb -vvv" return? (Preferably when the driver has been run once and stopped.)

Charles Lepple
clepple at gmail

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