Next problem, maybe hotplug?

Gene Heskett gene.heskett at
Sun Nov 12 22:27:26 UTC 2006

On Sunday 12 November 2006 16:23, Mikkel L. Ellertson wrote:
>Gene Heskett wrote:
>> On Sunday 12 November 2006 07:05, Tom Horsley wrote:
>> And snipped my original post about 1394 stuffs in general, please
>> don't do that as it destroys the context of the thread.
>>> Look at the boot messages as they go past - I'm pretty sure
>>> I remember noticing yesterday a message during boot that
>>> hotplug failed to start on my machine. Maybe it is just
>>> broken (this was FC6 i686 system).
>> The only mention of hotplug is this:
>> Nov 12 05:59:04 coyote pcscd:
>> hotplug_libusb.c:361:HPEstablishUSBNotifications() Hotplug stopped
>> and
>> Nov 12 06:03:04 coyote kernel: pci_hotplug: PCI Hot Plug PCI Core
>> version: 0.5
>> at the last reboot.
>> And there doesn't seem to be a hotplug entry in /etc/init.d, so I'm a
>> bit fruzzled.
>> 1.  hotplug wasn't something I used in FC2 so I'm not fam with its
>> foibles.
>> 2. /etc/hotplug only has a usb subdir in it, and is otherwise empty
>> except for what appears to be a couple of kino related files in the
>> usb subdir. And my camera uses firewire, not usb.
>> 3. I was able to get all that to work early this morning by repeatedly
>> modprobing those 3 modules until the errors went away (I expect I had
>> them listed in the wrong order on the command line), and then used
>> htop to send the udevd a SIGHUP.  Then kino could find the camera and
>> run it. but not before.
>> If anyone has any suggestions please speak up..
>> Thanks.
>In FC5, and most likely in FC6, hotplug is not being used.

Hummm...  Interesting. Flavor of the month left a bad aftertaste? :)

>functions of hotplug have been taken over by udev and HAL. I believe
>that the reason that /etc/hotplug is still there is that udev does
>some checking for old hotplug scripts and uses them.

Are there manpages on properly setting this up then?  url's?

>Before it died, I was doing some work to convert the hotplug code
>for my REB110 ebook reader to set the proper permissions so I could
>run rebcomm as a normal user. I have a hotplug script that set the
>owner of the USB device to the owner of the console. Because it does
>not get an entry in /dev, you can not use the normal permission
>setting of udev.

I did get it working, sort of, by loading everything with modprobe, and 
then kicking udevd with a kill -HUP.  kino can now see the camera, and 
can pull real time video in, but camera controls are taking kino into 
segfault territory, almost everytime a control button is clicked on, much 
much worse than it did under FC5.  There it was a nuisance, now its a 

kino-0.9.3 is out, and I've asked for a package on livna, but its been 
several days without a bisquit now...

But this needs to be made automatic when the camera is plugged in and 
turned on.  I probably screwed around with the above for an hour or more 
before it suddently worked.  The instability could even be related to all 
that for all I know.

Thanks Mikkel for this and any more clues you can throw my way.

Cheers, Gene

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