linux-kernel - Re: [PATCH 2/3] at91_serial: Fix break handling

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Message-ID: <20060802181403.32169f00@cad-250-152.norway.atmel.com>
Date:	Wed, 2 Aug 2006 18:14:03 +0200
From:	Haavard Skinnemoen <hskinnemoen@...el.com>
To:	Russell King <rmk+lkml@....linux.org.uk>
Cc:	Andrew Victor <andrew@...people.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] at91_serial: Fix break handling

On Wed, 2 Aug 2006 16:17:41 +0100
Russell King <rmk+lkml@....linux.org.uk> wrote:


> 1. Effectively, this just ignores every second break status.  We've
> no idea _which_ break interrupt is going to be ignored.

Good point. Would it be better if I forced break_active to zero after
some timeout?

Come to think about it, it's really strange that there's a single bit
indicating both start-of-break and end-of-break. I'll see if I can find
a way to tell the difference.

> 2. it breaks break handling.  uart_handle_break returns a value for a
>    reason.  Use it - don't unconditionally ignore the received
> character.

Ok, I'll fix it.

Out of curiosity, why does it return a value? ;)

Håvard
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