Charles Lepple
2015-Jul-11 15:53 UTC
[Nut-upsuser] need help [usb_submit_urb; Linux kernel]
Note: the NUT list email address is "nut-upsuser@" - the "nut-upsuser-owner@" address only goes to the list owners. On Jul 10, 2015, at 7:52 AM, taoufik abidi <ing.abidi at gmail.com> wrote:> hi, > 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. -- Charles Lepple clepple at gmail