From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Paul Fulghum <paulkf@microgate.com>
Cc: "Roland Caßebohm" <roland.cassebohm@VisionSystems.de>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Serial driver hangs
Date: Tue, 28 Sep 2004 22:16:00 +0100 [thread overview]
Message-ID: <20040928221600.D14747@flint.arm.linux.org.uk> (raw)
In-Reply-To: <1096405831.2513.37.camel@deimos.microgate.com>; from paulkf@microgate.com on Tue, Sep 28, 2004 at 04:10:31PM -0500
On Tue, Sep 28, 2004 at 04:10:31PM -0500, Paul Fulghum wrote:
> On Tue, 2004-09-28 at 10:34, Roland Caßebohm wrote:
> > I have tried just to read all byte left in the FIFO of the
> > UART in that case and throw them away.
>
> In my opinion, this is the correct way to handle the problem.
> This is what I do in the SyncLink drivers.
Some 16x50 ports (most of the ones higher than 16550A) have auto flow
control, so if this is enabled you really don't want to drop bytes in
the FIFO on the floor.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
next prev parent reply other threads:[~2004-09-28 21:19 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-28 15:34 Serial driver hangs Roland Caßebohm
2004-09-28 21:10 ` Paul Fulghum
2004-09-28 21:16 ` Russell King [this message]
2004-09-28 23:03 ` Paul Fulghum
2004-09-28 22:12 ` Alan Cox
2004-09-29 1:12 ` Paul Fulghum
2004-09-29 13:09 ` Roland Caßebohm
2004-09-29 13:17 ` Paul Fulghum
2004-09-29 14:07 ` Roland Caßebohm
2004-09-29 14:25 ` Paul Fulghum
2004-09-30 16:16 ` Roland Caßebohm
2004-09-30 19:09 ` Paul Fulghum
2004-09-30 18:34 ` Alan Cox
2004-09-30 19:51 ` Paul Fulghum
2004-09-30 19:59 ` Russell King
2004-09-30 20:05 ` Paul Fulghum
2004-09-30 20:30 ` Paul Fulghum
2004-09-30 20:10 ` Alan Cox
2004-09-30 21:25 ` Paul Fulghum
2004-10-01 0:47 ` Paul Fulghum
2004-10-01 15:22 ` Roland Caßebohm
2004-10-01 16:06 ` Paul Fulghum
2004-10-01 20:13 ` Stuart MacDonald
2004-10-01 20:36 ` Paul Fulghum
2004-09-29 14:13 ` Paul Fulghum
2004-10-01 15:25 ` Roland Caßebohm
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