linux-kernel - Re: [PATCH v4 08/11] tty: add pruss SUART driver

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Date:	Wed, 11 May 2011 11:35:46 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Subhasish Ghosh" <subhasish@...tralsolutions.com>
Cc:	<davinci-linux-open-source@...ux.davincidsp.com>,
	"Greg Kroah-Hartman" <gregkh@...e.de>,
	<linux-arm-kernel@...ts.infradead.org>, <m-watkins@...com>,
	<nsekhar@...com>, <sachi@...tralsolutions.com>,
	"Andrew Morton \(commit_signer:1/4=25%\)" <akpm@...ux-foundation.org>,
	"Randy Dunlap \(commit_signer:1/4=25%\)" <randy.dunlap@...cle.com>,
	"open list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 08/11] tty: add pruss SUART driver

> We do not support Modem control signals. So, I use -clocal with stty,
> but I observe that still enable_ms and get_mctrl handlers get called.
> Is that normal, how can I disable these functions from getting called.

It is normal.

> Actually, this same driver works perfectly with 2.6.33 kernel.
> With this Kernel I do not observe that these handlers getting called.
> So, basically the code path is different.

Quite possibly - but you'll need to trace down and understand *why* the
problem exists. Finding which kernel introduces it might be a step in the
right direction.

Alan
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