From owner-freebsd-hackers  Sun Mar 26 21:41:18 2000
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Date: Mon, 27 Mar 2000 09:41:13 +0400
From: Nikolai Saoukh <nms@otdel-1.org>
To: Warner Losh <imp@village.org>
Cc: freebsd-hackers@FreeBSD.ORG
Subject: Re: Reserving Resources
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References: <20000327092452.B18459@Draculina.otdel-1.org> <20000327091626.A18459@Draculina.otdel-1.org> <200003261249.VAA05285@tasogare.imasy.or.jp> <200003260112.SAA76635@harmony.village.org> <200003261249.VAA05285@tasogare.imasy.or.jp> <200003262340.QAA87438@harmony.village.org> <20000327091626.A18459@Draculina.otdel-1.org> <200003270518.WAA89979@harmony.village.org> <20000327092452.B18459@Draculina.otdel-1.org> <200003270530.WAA90072@harmony.village.org>
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In-Reply-To: <200003270530.WAA90072@harmony.village.org>; from imp@village.org on Sun, Mar 26, 2000 at 10:30:48PM -0700
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On Sun, Mar 26, 2000 at 10:30:48PM -0700, Warner Losh wrote:

> In message <20000327092452.B18459@Draculina.otdel-1.org> Nikolai Saoukh writes:

> : Current 'unknown' driver attaches with 0 priority, thus kldloaded
> : driver is not called at all. And even when 'unknown' driver attaches
> : with very low priority, what happens when real driver will be
> : kldunloaded?
> 
> Hmmm.  The unknown driver should attach with a negative priority.
> What should happen?  The drivers that have a negative priority should
> detach, or at least drivers with a very low priority (set a threshold
> of -1000 or something) detached before a probe...  I know that this
> was talked about at one point, but come to think about it, I don't
> recall it being committed.

I was wrong. 'unknown' driver attaches with (-100) priority.
I have another problem -- when 'unknown' driver attached
to my device, my kldloaded driver is not called at all, so I can't
override 'unknown' with higher priority. So for a while
I just made #if 0 ... #endif for 'unknown'.


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