[Nut-upsuser] [Nut-upsdev] Belkin USB UPSes

[Kjell Claesson]

OK Eric,
Den Tuesday 22 May 2007 08.56.08 skrev Eric S. Raymond:
> Kjell Claesson <kjell.claesson at epost.tidanet.se>:
> > Or install the udev rules and replug the ups.
>
> Did that.  Manual startup of the driver now works without -u root,
> indicating (I think) that the udev rools are doing their job.  This
>
8<-----------------------Snip----------------------------------------
> /proc/bus/usb/002:
> total 0
> crw-rw-r-- 1 root root 189, 128 2007-05-18 01:47 001
> crw-rw-r-- 1 root nut  189, 130 2007-05-22 02:46 003
>
> /proc/bus/usb/003:
> total 0
> crw-rw-r-- 1 root root 189, 256 2007-05-22 02:44 001
>
> also indicates that permissions look OK.
>
> However, starting with upsdrvctrl still reports driver startup failing
> with exit 1.  What other things besides permissions errors can cause this?
>

Normaly it should say something more than 'exit 1'.

Did You install from svn ?

And if so, did You set the state_path during configure. You may be
missing or having the wrong rights on that directory.
Default it should be /var/state/nut/.

This directory holds the driver socket, and if it don't exist it
would make the upsdrvctrl exit with a error.

> (I plan to submit a patch for the installation instructions  if we
> can figure this out, so your advice will benefit the next person to
> trip over this, too.)

Take care that there is difference depending on udev version and libusb.

As ther was changes around the access to /proc in the kernel, this is
changed in the udev. So now it makes devices under /dev/bus/usb/xxx

And for libusb,
Quote:
* Fri Jan 27 2006 Jindrich Novy <jnovy at redhat.com> 0.1.11-2
- change device search order, /dev/bus/usb is tried first,
  then /proc/bus/usb, and never try /sys/bus/usb (#178994)
Unquote

This was released in libusb 0.1.12 so now the device is
/dev/bus/usb/00x/00x

The /proc/bus/usb/xxx/xxx is setup to belong to root:usb now.

Regards
Kjell

P.S. Peter Selinger made me change mail client. Didn't notice that it was not 
cc'd to the list.