linux-kernel - Re: [patch v2 6/6] staging: speakup: flush tty buffers and ensure hardware flow control

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Date:   Tue, 16 May 2017 13:19:10 +0100
From:   Okash Khawaja <okash.khawaja@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Jiri Slaby <jslaby@...e.com>,
        Samuel Thibault <samuel.thibault@...-lyon.org>,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        Kirk Reiser <kirk@...sers.ca>,
        "Speakup is a screen review system for Linux." 
        <speakup@...ux-speakup.org>, John Covici <covici@....covici.com>,
        Chris Brannon <chris@...-brannons.com>
Subject: Re: [patch v2 6/6] staging: speakup: flush tty buffers and ensure
 hardware flow control

Hi,

On Tue, May 16, 2017 at 1:00 PM, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Mon, May 15, 2017 at 06:45:37PM +0100, Okash Khawaja wrote:
>> This patch fixes the issue where TTY-migrated synths would take a while to shut up after hitting numpad enter key. When calling synth_flush, even though XOFF character is sent as high priority, data buffered in TTY layer is still sent to the synth. This patch flushes that buffered data when synth_flush is called.
>
> Minor nit, please line-wrap your changelog text at 72 columns so that I
> don't have to do it "by hand".
Sure, will do.

>
>>
>> It also tries to ensure that hardware flow control is enabled, by setting CRTSCTS using tty's termios.
>>
>> Reported-by: John Covici <covici@....covici.com>
>> Signed-off-by: Okash Khawaja <okash.khawaja@...il.com>
>> Reviewed-by: Samuel Thibault <samuel.thibault@...-lyon.org>
>>
>> Index: linux-staging/drivers/staging/speakup/serialio.c
>> ===================================================================
>
> Are you using git?  These lines are odd...
They come from quilt. Haven't checked yet if there is an option to
turn them off.

Thanks,
Okash