[mythtv-users] Permission problem on /dev/video 0-3

MacNean Tyrrell dardack at gmail.com
Sat Jul 31 02:27:51 UTC 2010


On Fri, Jul 30, 2010 at 10:27 PM, MacNean Tyrrell <dardack at gmail.com> wrote:

>
>
> On Fri, Jul 30, 2010 at 12:07 PM, <mythtv.t.wuuza at xoxy.net> wrote:
>
>> > /usr/bin/service mythtv-backend restart
>>
>> > But it still doesn't fix it. However, once X is loaded if i run same
>> > command it's fine.
>>
>> Here's the script I use to delay until the udev permissions are set on my
>> tuner (ie group is video instead of root).  I post this because A) it
>> might help you and B) if anyone has a better way of doing this I'm
>> listening.  I'm a programmer but not a bash expert.  It seems like this
>> should be possible without a temp file but I couldn't get it to work and
>> it was getting late the night I was messing with it.  I'm sure there are
>> other ways to check permissions, too.
>>
>> #!/bin/sh
>> while true; do
>>        find /dev/video1 -group video > /tmp/waitForVideo
>>        if [ `grep video1 /tmp/waitForVideo` ]; then
>>                break
>>        fi
>>        sleep 1
>> done
>>
>>
> You stick the command for the script in your rc.local?
>
> Just real quick (i left my program days 12 years ago for
> accounting/computer forensics, so bare with me) I know the find command,
> what does the -group video do?  I mean I get that it's putting whatever the
> find command finds into /tmp/wfv and then if there is an entry for video1
> breaking, just don't understand the -group video option.
>
>
Forgot to add, thank for posting this, next time i'm up at my parents I'll
try it out to see if it fixes his problem.


> John
>>
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>> mythtv-users at mythtv.org
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>>
>
>
>
> --
> Sincerely,
>
> MacNean C. Tyrrell
>



-- 
Sincerely,

MacNean C. Tyrrell
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