Date: Sun, 7 Apr 2013 10:42:32 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: lev@freebsd.org, freebsd-current@freebsd.org Subject: Re: Intel D2500CC motherboard and strange RS232/UART behavior Message-ID: <CAJ-VmonoeKeY3vQGXghvBJdbBEDJJZVbqW6F=KQfNBnNHBP9vA@mail.gmail.com> In-Reply-To: <5068.1365356114@critter.freebsd.dk> References: <229402991.20130407172016@serebryakov.spb.ru> <2866.1365348969@critter.freebsd.dk> <454119968.20130407211356@serebryakov.spb.ru> <5068.1365356114@critter.freebsd.dk>
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On 7 April 2013 10:35, Poul-Henning Kamp <phk@phk.freebsd.dk> wrote: > > 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. Yup, it does. No IRQ hint == polled mode. It'll say as much in the dmesg. Adrian
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