[mythtv-users] card#0 - Permission Denied!

[Warren]

Jo Shields wrote:
> Brian Wood wrote:
>
>   
>> On Mar 16, 2006, at 9:13 AM, Warren wrote:
>>
>>  
>>
>>     
>>> `Not necessarily.  The dvb devices use up so much bandwidth that  
>>> it is logical to assume that the program accessing them will need  
>>> access to realtime scheduling as well, which is also a root-only  
>>> function.  Making dvb devices owned by root to me is the natural  
>>> thing to do.
>>>
>>>    
>>>
>>>       
>> You have a point, I guess there is no "one size fits all" answer.
>>
>> I guess I just resist anybody making decisions for me, but they can  
>> always be changed.
>>
>> I'll try and write up something for the WiKi about changing device  
>> permissions on udev systems.
>>
>>     
>
> This is exactly why it should be in a user group though - you're right, 
> it uses a lot of bandwidth, so nto all users will neccessarily want to 
> use the device - but you might want to run some kind of daemon (let's 
> say a hypothetical "LegendTV"), so a root-only device is a silly idea.
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>   

But if this LegendTV actually wanted to do a capture of the
high-bandwidth data coming in from the dvb card, it would need to be
root so that the real time scheduling would work and data would not be
missed.  So the root-only device is the way to go. :)

W
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