Message-ID: <417D7C9D.8040409@tmr.com>
Date: Mon, 25 Oct 2004 18:22:21 -0400
From: Bill Davidsen <davidsen@tmr.com>
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To: Luca Risolia <luca.risolia@studio.unibo.it>
CC: linux-kernel@vger.kernel.org, alan@lxorguk.ukuu.org.uk, luc@saillard.org
Subject: Re: Linux 2.6.9-ac3
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Luca Risolia wrote:
> On Sat, 23 Oct 2004 10:54:25 -0400
> Bill Davidsen <davidsen@tmr.com> wrote:
> 
> 
>>Luca Risolia wrote:
>>
>>>>o       Restore PWC driver                              (Luc Saillard)
>>>
>>>
>>>This driver does decompression in kernel space, which is not
>>>allowed. That part has to be removed from the driver before
>>>asking for the inclusion in the mainline kernel.
>>
>>What do you mean by "not allowed?"
> 
> 
> http://marc.theaimsgroup.com/?l=linux-video&m=108627734619978&w=2
> 
> Also note how Alan Cox seems not to be actually coherent with his
> previous opinions.

If you're a Republican he's "wishy-washy", if you're a Democrat he's 
"flexible and adaptable to changing conditions." If you're not a US 
resident you're confused by the previous sentence, please ignore it's an 
in-joke (or tragedy).
> 
>  Clearly it would nice if it were in 
> 
>>user space, but it would have to be in EVERY user application to be 
>>useful. We have compression in kernel for ppp, and there's only one 
>>significant use for that, requiring that every application support every 
>>vendor hardware makes it a non-scalable NxM problem.
> 
> 
> Hmm..What about a common library finally?

That sounds like the eventual solution. A vendor to common format 
conversion library, and with luck someone will be clever and let the 
driver select it in a nice acceptable way. Thought: after open an ioctl 
to tell you which conversion to use? The optimal mechanics are 
inobvious, but I think the library is the right idea.

-- 
    -bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
  last possible moment - but no longer"  -me
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