[pvrusb2] Re: Why sysfs only root-writeable?

[Bill Crowell]

Mike,

Great minds think alike - and so do ours! The numeric GID will handle 
this nicely and is consistant with all of the other modprobe options.

Please make this option set /sys /proc and any /dev entries created by 
the driver as this will make it all in the same context.

Good weekend everyone.

Bill

Mike Isely wrote:

>On Fri, 2 Sep 2005, Bill Crowell wrote:
>
>  
>
>>Better than my last reply.
>>    
>>
>
>Good, because I still didn't like the idea in your last reply either.
>It's still putting distribution specific info into a driver (even if only
>at the point when it is compiled)...
>
>  
>
>>put in a modprobe.conf option for pvrusb2:
>>
>>option pvrusb2 group=video
>>
>>modprobe runs as root and this would allow setting without a
>>compile-time option.
>>    
>>
>
>This still has one problem, but it's a good idea and we can do something
>that will have a similar effect.  The one problem is that "group=video"
>gets passed verbatim into the kernel driver and thus the driver would
>still have the very difficult job of trying to translate "video" to
>whatever gid your distro is using.  There's no way for modprobe itself to
>translate since it can't know what the option is supposed to mean.
>
>But we could still do something like this:
>
>option pvrusb2 group=23
>
>(where 23 is the gid for your video group)
>
>This I have no problem with doing.  In fact I'll even create a user option
>as well.  You'd still have to hand-translate the group (or user) name once
>when setting up the file, but it keeps the distro specific knowledge out
>of the kernel and only in a config file that's part of your installation.
>
>There is precedent for this approach.  I just now realized that the
>realtime kernel module implements exactly the same sort of solution for
>getting a gid into the kernel.
>
>I'm adding this to my to-do list right now.
>
>  -Mike
>
>
>  
>

-- 
William G. Crowell, VP & CTO
Crowell Systems
4235 South Stream Blvd Suite 100
Charlotte NC 28217
704.665.2000 fax 704.665.2180 

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