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Date:      Sun, 07 Apr 2013 20:15:01 +0000
From:      "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To:        lev@FreeBSD.org
Cc:        Adrian Chadd <adrian@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: Intel D2500CC motherboard and strange RS232/UART behavior
Message-ID:  <5847.1365365701@critter.freebsd.dk>
In-Reply-To: <1428566376.20130407234355@serebryakov.spb.ru>
References:  <229402991.20130407172016@serebryakov.spb.ru> <2866.1365348969@critter.freebsd.dk> <454119968.20130407211356@serebryakov.spb.ru> <5068.1365356114@critter.freebsd.dk> <CAJ-VmonoeKeY3vQGXghvBJdbBEDJJZVbqW6F=KQfNBnNHBP9vA@mail.gmail.com> <962552272.20130407232944@serebryakov.spb.ru> <5698.1365363110@critter.freebsd.dk> <1428566376.20130407234355@serebryakov.spb.ru>

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In message <1428566376.20130407234355@serebryakov.spb.ru>, Lev Serebryakov writ
es:

>It  doesn't  look  so.  And  uart1  and  uart3  doesn't have interrupt
>according to `vmstat -i' (but share irq4 according to boot messages).

Ohh, there you go...

Interrupt sharing on ISA requires special magic...

With sio(4) one could hardcode interrupt sharing with hints.flags,
but with uart(4) I think you have to go through puc(4) to do it.

Not sure how that that should work in a case like this...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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