From: Tilman Schmidt <tilman@imap.cc>
To: Lee Howard <faxguy@howardsilvan.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Robert Hancock <hancockr@shaw.ca>,
linux-serial@vger.kernel.org, tytso@mit.edu,
rmk@arm.linux.org.uk, linux-kernel@vger.kernel.org
Subject: Re: serial flow control appears broken
Date: Fri, 27 Jul 2007 15:45:54 +0200 [thread overview]
Message-ID: <46A9F712.70706@imap.cc> (raw)
In-Reply-To: <46A98845.8010806@howardsilvan.com>
[-- Attachment #1: Type: text/plain, Size: 1067 bytes --]
Lee Howard schrieb:
>
> So, does this explain why I wouldn't have a problem at 115200 bps with
> kernel 2.2.5 but why I do with 2.6.5 and 2.6.18? Both hardware and
> software flow control work fine with 2.2.5 (meaning I don't see any
> error message and I don't have any data corruption), but neither works
> to avoid the "kernel: ttyS1: 1 input overrun(s)" and consequent data
> corruption issue in 2.6.5 nor 2.6.18.
>
> Was there some associated application change in tty handling that needed
> to occur between the 2.2 and 2.6 kernels to properly implement flow control?
Could this be related?
http://lkml.org/lkml/2007/7/18/245
Quote:
"I've recently found (using 2.6.21.4) that configuring a serial ports
(ST16654) which use the 8250 driver using setserial results in the
UART's FIFOs being disabled (unless you specify autoconfig)."
--
Tilman Schmidt E-Mail: tilman@imap.cc
Bonn, Germany
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next prev parent reply other threads:[~2007-07-27 13:46 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.Z6O0xFRT69zes0Mg+agt3Uiwux4@ifi.uio.no>
2007-07-26 7:20 ` Robert Hancock
2007-07-26 16:08 ` Lee Howard
2007-07-26 16:31 ` Alan Cox
2007-07-27 5:53 ` Lee Howard
2007-07-27 13:45 ` Tilman Schmidt [this message]
2007-07-27 20:05 ` Lee Howard
2007-08-27 20:38 ` Paul Fulghum
2007-07-27 20:48 ` Lee Howard
2007-07-27 23:28 ` Paul Fulghum
2007-07-28 4:51 ` Lee Howard
2007-07-28 9:18 ` Russell King
2007-07-28 12:00 ` Alan Cox
2007-07-28 15:39 ` Lee Howard
2007-07-28 16:41 ` Ray Lee
2007-08-04 18:21 ` Lee Howard
2007-08-04 22:07 ` Paul Fulghum
2007-08-05 0:00 ` Lee Howard
2007-08-05 14:52 ` Paul Fulghum
2007-07-27 11:32 ` Maciej W. Rozycki
2007-07-27 17:11 ` Lee Howard
2007-07-27 17:41 ` Alan Cox
2007-07-27 17:53 ` Maciej W. Rozycki
2007-07-27 18:11 ` Lee Howard
2007-07-30 9:36 ` Maciej W. Rozycki
2007-07-27 18:22 ` Robert Hancock
2007-07-27 18:46 ` Paul Fulghum
2007-07-27 19:05 ` Paul Fulghum
2007-07-30 9:39 ` Maciej W. Rozycki
2007-07-27 19:14 ` Paul Fulghum
2007-07-28 9:28 ` Russell King
2007-07-30 9:45 ` Maciej W. Rozycki
2007-07-30 9:59 ` Russell King
2007-08-02 14:57 ` Mark Lord
2007-08-02 16:14 ` Robert Hancock
2007-08-02 16:29 ` Mark Lord
2007-08-02 16:40 ` Robert Hancock
2007-08-02 17:13 ` Alan Cox
2007-08-04 19:38 ` Lee Howard
2007-08-02 16:57 ` Alan Cox
2007-08-02 17:02 ` Robert Hancock
2007-08-03 9:32 ` Maciej W. Rozycki
2007-07-30 9:34 ` Maciej W. Rozycki
2007-08-04 18:19 ` Lee Howard
2007-07-26 1:52 Lee Howard
2007-07-26 12:34 ` Uwe Kleine-König
2007-07-26 16:28 ` Lee Howard
2007-07-26 16:41 ` Alan Cox
2007-07-27 6:17 ` Lee Howard
2007-07-27 11:56 ` Alan Cox
2007-07-27 18:00 ` Lee Howard
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