Kernels and udev

[Karl Larsen]

	I am an expert at neither kernel or udev writing, but I do read the man 
pages and I think some things need to be said.

	First, udev is instructed by the kernel to write a thing in /dev/. If 
this happens then the event can be completed. If the kernel words are 
garbled or udev can't read it because it is too new, then udev does nothing.

	I think the interface between udev and the old kernel is just fine and 
this is why the USB ports work. I think the new kernel and the present 
udev are not talking.

	The fix to this problem is either a rewrite of udev or a rewrite of the 
kernel. The fix also needs a person who has hands on experiance with 
both the kernel and udev.

	This sounds simple but it is not simple at all.

-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.

[Les Mikesell]

Karl Larsen wrote:
>      I am an expert at neither kernel or udev writing, but I do read
> the 
>  man pages and I think some things need to be said.
>  
>      First, udev is instructed by the kernel to write a thing in /dev/. 
>  If this happens then the event can be completed. If the kernel words are 
>  garbled or udev can't read it because it is too new, then udev does 
>  nothing.
>  
>      I think the interface between udev and the old kernel is just fine 
>  and this is why the USB ports work. I think the new kernel and the 
>  present udev are not talking.
>  
>      The fix to this problem is either a rewrite of udev or a rewrite of 
>  the kernel. The fix also needs a person who has hands on experiance with 
>  both the kernel and udev.
>  
>      This sounds simple but it is not simple at all. 
There are several different threads going about this.  I thought someone 
else solved the same problem by picking up a newer udev package from the 
rawhide repo and keeping the current fedora kernel - so it must already 
be done.

-- 
   Les Mikesell
     lesmikesell(a)gmail.com

[Andy Green]

Somebody in the thread at some point said:

> >     This sounds simple but it is not simple at all.
>  
>  There are several different threads going about this.  I thought someone
>  else solved the same problem by picking up a newer udev package from the
>  rawhide repo and keeping the current fedora kernel - so it must already
>  be done. 
I think Karl was musing over the interrelationships between packages and
how that can cause problems.

"It's not as simple as I thought" is the universal "beginning of
wisdom".

-Andy