[Nut-upsuser] How to shut down the running usbhid-ups driver and start with -DDD option?

[Niels Kristian Jensen]

Hi all,

Well, I must be missing something so obvious, that it isn't even in  
the documentation: How to stop all instances of a driver.

I tried this on my system, since I use the usbhid-ups:

nkj at grisen:~$ ps ax | grep usbhid
   238 ?        S      0:00 [usbhid_resumer]
  1035 ?        Ss    37:14 /lib/nut/usbhid-ups -a PingvinUPS
24223 pts/0    S+     0:00 grep usbhid


I would not dare to use "kill" on neither the usbhid_resumer nor the  
usbhid-ups with the system running in a remote location.

/lib/nut/usbhid-ups -h gives no clue about how to shut down, the "-k"  
option probably would shut down the UPS, not the driver.

So I searched the mail archives using keywords:

"error sending control message"
"libusb_get_report"

If some useful answer came up, I failed to find it.

Searching with google:

libusb_get_report site:www.networkupstools.org
and
debug site:www.networkupstools.org

Nothing here, either.

Can someone tell me how? Please be gentle, I feel like this should be  
a simple task...

Best regards,
Niels Kristian Jensen




Quoting Arjen de Korte <nut+users at de-korte.org>:

> Citeren Niels Kristian Jensen <nkj at internetgruppen.dk>:
>
>> (many more resource errors follow)
>
> The last lines are telling you what is going on:
>
>    4.547868	libusb_get_report: error sending control message: Device or
> resource busy
>    4.547886	Can't retrieve Report 06: Device or resource busy
>    4.547900	Got disconnected by another driver: Device or resource busy
>
>> Well, I probably need to shut down NUT somehow to release the resource?
>
> Yes. You can only claim a device once, so in order to get meaningful
> output, you must stop all instances of usbhid-ups before starting it in
> debug mode.
>
> Best regards, Arjen
> -- 
> Please keep list traffic on the list (off-list replies will be rejected)
>
>
> _______________________________________________
> Nut-upsuser mailing list
> Nut-upsuser at lists.alioth.debian.org
> http://lists.alioth.debian.org/mailman/listinfo/nut-upsuser