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Date: Sun, 7 Apr 2013 23:29:44 +0400
From: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD
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Message-ID: <962552272.20130407232944@serebryakov.spb.ru>
To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: Intel D2500CC motherboard and strange RS232/UART behavior
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Cc: Poul-Henning Kamp <phk@phk.freebsd.dk>, freebsd-current@freebsd.org
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Hello, Adrian.
You wrote 7 =D0=B0=D0=BF=D1=80=D0=B5=D0=BB=D1=8F 2013 =D0=B3., 21:42:32:

>> 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.
AC> Yup, it does. No IRQ hint =3D=3D polled mode. It'll say as much in the =
dmesg.
  It  looks  like  it  picks  up IRQ hint from ACPI, and, according to
  dmesg, it does so correctly, but after that it doesn't work :(

--=20
// Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>