[mythtv-users] Can't get usb iMon VFD working on Silverstone LC16M case

Nick Morrott knowledgejunkie at gmail.com
Sat Aug 11 00:20:32 UTC 2007


On 11/08/07, Bob <maillists.mythtv at gmail.com> wrote:
> On Friday 10 August 2007 22:45, Nick Morrott wrote:
> > On 10/08/07, Bob <maillists.mythtv at gmail.com> wrote:
> > > I think that the hardware might be broken.  As I understand it plugging
> > > in _any_ USB device will give you some output in the system log and be
> > > shown if you do a lsusb.
> >
> > The best place to look for answers is http://venky.ws/projects/imon/ but...
> >
> > > If I remove a working device, eg my mouse, I get a 'device disconnected'
> > > message in the logs but when I plug the VFD in I get absolutely no output
> > > in the log.  If I reconnect the mouse I get a 'device connected' log
> > > message.
> >
> > I've never hot-swapped my VFD. Power down the machine, plug it in, and
> > restart it.
> >
> > lsusb should show a device with a vendor:product ID of 15c2:ffdc -
> > this is the VFD. I see no  mention of the manufacturer in the output
> > or anything else to readily identify it, this information was garnered
> > from previous investigation.
> >
> > > Does this mean the hardware is broken?  Or is it possible that it's just
> > > not being recognised.
> >
> > I'd be worried if it didn't show up in lsusb _at all_. Have you got
> > the relevant driver installed (standalone or LIRC-enabled)? I don't
> > remember seeing any output in the syslogs on boot, but then the box is
> > never rebooted...
>
>
> Yeah, I originally I was trying with it plugged in at boot time, if I boot
> with just the VFD plugged in (to a known good port):
>
> # lsusb
> Bus 001 Device 001: ID 0000:0000
> Bus 002 Device 001: ID 0000:0000
>
>
> I _think_ I've got the right drivers, lirc-0.8.1 and lcdproc-0.5.1, but
> # modprobe lirc_dev lirc_imon
> # lsusb
> Bus 001 Device 001: ID 0000:0000
> Bus 002 Device 001: ID 0000:0000

Just to make sure, have you got the separate power connector attached
to provide power to the VFD? This is needed in addition to the USB
connection. You should see output on the VFD whenever the power is
connected.

-- 
Nick

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