[Nut-upsuser] need help [usb_submit_urb; Linux kernel]
clepple at gmail.com
Sat Jul 11 15:53:49 UTC 2015
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On Jul 10, 2015, at 7:52 AM, taoufik abidi <ing.abidi at gmail.com> wrote:
> I got stuck on this error I am researching to solve the problem but I found nothing
> Here the error "drivers / hid / usbhid / hid-core.c usb_submit_urb (ctrl) failed"
> the problem generated when I connect the UPS to the server via the USB cable.
hid-core.c is part of the Linux kernel, not NUT. You may have better luck asking on the linux-usb mailing list, but they will want to know the version of the kernel that you are using, and the exact output dmesg.
Sometimes, this error/warning is generated when the kernel requests extra identification from the UPS. It is most likely benign, unless there is a disconnection message like the following:
[ 3.618015] usb 4-2: can't set config #1, error -84
[ 4.056102] usb 4-2: USB disconnect, device number 3
If the UPS logically disconnects, it will make it harder for user-space software like NUT to reliably communicate with it.
clepple at gmail
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