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Date:      Mon, 06 May 2013 11:21:05 -0400
From:      Lowell Gilbert <>
To:        Miguel Barbosa =?iso-8859-1?Q?Gon=E7alves?= <>
Subject:   Re: Disable FIFO on UART
Message-ID:  <44r4hkuobi.fsf@lowell-desk.lan>
In-Reply-To: <> ("Miguel Barbosa =?iso-8859-1?Q?Gon=E7alves=22's?= message of "Sun, 5 May 2013 12:59:17 +0100")
References:  <>

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Miguel Barbosa Gon=E7alves <> writes:

> Back in FreeBSD 7 there was a flag to disable the FIFO on the sio
> Now with FreeBSD 8 which uses the UART device driver there's no option fo=
r that.
> I am looking to reduce the jitter I am getting on the serial port when
> connecting a GPS to the server.
> Can anyone help?

It looks do-able, although the interface is a bit more abstract and
covers a wider variety of hardware. You would probably need to contact
whoever's working on that driver these days.

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