Mailinglist Archive: opensuse (1986 mails)

["Carlos E. R." <carlos.e.r@xxxxxxxxxxxx>]

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Hi,

I'm attempting to make use of my new UPS, connecting it via USB to the 
'nut' service (nut-classic package), but I'm failing.

It is a Belkin, model BU306000me. According to 
<http://www.networkupstools.org/compat/stable.html> I should use 
the driver megatec_usb, because the vendor id  0665.

See the kernel log:

  kernel: usb 3-1: new low speed USB device using uhci_hcd and address 14
  kernel: usb 3-1: configuration #1 chosen from 1 choice
  kernel: hiddev96hidraw0: USB HID v1.00 Device [Cypress Semiconductor USB to 
Serial] on usb-0000:02:02.1-1
  kernel: usb 3-1: New USB device found, idVendor=0665, idProduct=5161
  kernel: usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  kernel: usb 3-1: Product: USB to Serial
  kernel: usb 3-1: Manufacturer: Cypress Semiconductor



So in '/etc/ups/ups.conf' I configured it thus:

   [myups]
         driver = megatec_usb
         port = /dev/hiddev0
         desc = "Local UPS"

When I run "rcupsd start" it fails; it simply says "failed", there is 
nothing in the logs. But searching this list archive, I found one

   Date: Jun 2008
   Subject: Re: [opensuse] new ups device, what location

in which it says, amongst other things, that the user 'upsd' should be 
added to the group 'uucp' - I understand because the the daemon runs as 
user and needs access to '/dev/hiddev0':

  crw-rw-r-- 1 root daemon 180, 96 Nov 18 01:55 /dev/hiddev0

but perhaps it now has to be added to the group "daemon", so that I have 
added user 'upsd' to both groups. Now I'm getting output in the logs, so I 
must have done something right.



The script "rcupsd start" takes 45" to finish, and fails:

   nimrodel:~ # time rcupsd start
   Starting NUT UPS drivers                         failed

   real    0m45.113s
   user    0m0.028s
   sys     0m0.044s

One of the problems is that the device _disappears_ as soon as the above 
script starts:

   nimrodel:/etc/ups # l /dev/hiddev0
   ls: cannot access /dev/hiddev0: No such file or directory

and a minute before it was there. There is an entry in the log:

  Nov 18 01:57:35 nimrodel megatec_usb[23363]: Startup successful

but I think it is false, though I'm unsure how to test it. I suppose it 
should be this:

   nimrodel:/etc/ups # upscmd -l myups
   Error: Connection failure: Connection refused

but it fails. Something is running, though:

  23276 ?        Ss     0:00 /usr/lib/ups/driver/megatec_usb -a myups

The daemon stop is also problematic, takes 4 seconds but succeeds:

   nimrodel:~ # time rcupsd stop
   Shutting down NUT UPS monitor                                 done
   Shutting down NUT UPS server                                  done
   Shutting down NUT UPS drivers....                             done

   real    0m4.295s
   user    0m0.104s
   sys     0m0.128s
   nimrodel:~ #

and the log shows it:

  Nov 18 01:58:58 nimrodel megatec_usb[23363]: Signal 15: exiting


I have also tried using mknod to create the device, to no avail. Of 
course, it does not disappear, but it does not work.

  nimrodel:/etc/ups # mknod /dev/hiddev0 c 180 96
  nimrodel:/etc/ups # chmod 0664 /dev/hiddev0
  nimrodel:/etc/ups # chown :uucp /dev/hiddev0


What can I do to make it work - if it should work at all?


- -- 

Cheers
      Carlos E. R.
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