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Date:      Sun, 07 Apr 2013 17:35:14 +0000
From:      "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To:        lev@FreeBSD.org
Cc:        freebsd-current@freebsd.org
Subject:   Re: Intel D2500CC motherboard and strange RS232/UART behavior
Message-ID:  <5068.1365356114@critter.freebsd.dk>
In-Reply-To: <454119968.20130407211356@serebryakov.spb.ru>
References:  <229402991.20130407172016@serebryakov.spb.ru> <2866.1365348969@critter.freebsd.dk> <454119968.20130407211356@serebryakov.spb.ru>

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I think if you configure no irq at all, it will automatically
go to polled mode.

Not sure if uart(4) can actually do that, sio(4) could.

-- 
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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