From: Paul Mundt <lethal@linux-sh.org>
To: linux-sh@vger.kernel.org
Subject: Re: [PATCH] Fix too early disabling of the serial (SCI(F)) ports
Date: Fri, 04 Dec 2009 04:45:35 +0000 [thread overview]
Message-ID: <20091204044535.GH11047@linux-sh.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0912011045150.4701@axis700.grange>
On Tue, Dec 01, 2009 at 10:54:46AM +0100, Guennadi Liakhovetski wrote:
> Currently serial ports on SH CPUs get disabled too early, because the
> sci_tx_empty() routine claims to not be able to detect whether the
> transmission has been completed and just always returns TIOCSER_TEMT. This
> results in corrupt output of last characters if the port is not open for
> reading at the same time. It is however possible to detect whether
> transmission has been completed. Use the TEND bit of the status register
> for this.
>
> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Applied, thanks.
next prev parent reply other threads:[~2009-12-04 4:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-01 9:54 [PATCH] Fix too early disabling of the serial (SCI(F)) ports Guennadi Liakhovetski
2009-12-04 4:45 ` Paul Mundt [this message]
2009-12-04 10:51 ` Magnus Damm
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