linux-kernel - Re: Insanely high baud rates

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Date:   Wed, 10 Oct 2018 21:17:17 +0100
From:   Alan Cox <gnomes@...rguk.ukuu.org.uk>
To:     "H. Peter Anvin" <hpa@...or.com>
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 Tue, 9 Oct 2018 12:19:04 -0700
"H. Peter Anvin" <hpa@...or.com> wrote:

> [Resending to a wider audience]
> 
> In trying to get the termios2 interface actually implemented in glibc,
> the question came up if we will ever care about baud rates in excess of
> 4 Gbps, even in the relatively remote future.

Even RS485 at 4MBits involves deep magic. I think we are fairly safe. Not
only that but our entire tty layer isn't capable of sustaining anything
even remotely in that range.

I think its non issue.

Alan