linux-kernel - Re: Insanely high baud rates

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Message-ID: <8A583BC1-A295-48D2-B4C3-3E70AA50D035@zytor.com>
Date:   Thu, 11 Oct 2018 07:14:30 -0700
From:   hpa@...or.com
To:     Alan Cox <gnomes@...rguk.ukuu.org.uk>
CC:     linux-serial@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, Johan Hovold <johan@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>
Subject: Re: Insanely high baud rates

On October 11, 2018 5:31:34 AM PDT, Alan Cox <gnomes@...rguk.ukuu.org.uk> wrote:
>> I'm mostly wondering if it is worth future-proofing for new
>transports. It sounds like we can have a consensus on leaving the upper
>4 bits of the speed fields reserved, but leave the details of
>implementation for the future?
>
>It seems reasonable, although I think the reality is that any future
>transport is not going to be a true serial link, but some kind of
>serial
>emulation layer. For those the speed really only matters to tell
>editors
>and the like not to bother being clever.
>
>I mean - what is the baud rate of a pty  ?
>
>Alan

Whatever the master wants it to be...
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