From: "Ted Ts'o" <tytso@mit.edu>
To: Samuel Thibault <samuel.thibault@ens-lyon.org>,
"John G. Heim" <jheim@math.wisc.edu>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-kernel@vger.kernel.org
Subject: Re: speakup bug
Date: Sat, 3 Mar 2012 20:41:23 -0500 [thread overview]
Message-ID: <20120304014122.GA4333@thunk.org> (raw)
In-Reply-To: <20120304004348.GR4180@type.famille.thibault.fr>
On Sun, Mar 04, 2012 at 01:43:48AM +0100, Samuel Thibault wrote:
>
> Sure! But there should be a way to do it without /, just like the
> serial console works on ttyUSB0 without /.
It's not impossible, but the hard part will be creating a naming
infrastructure so the user can specify the appropriate serial port if
there are multiple (non-console) tty devices present on the system.
My suggestion would be to get it working using a userspace daemon, and
then putting in the kernel code to open the serial port without a file
system. It certainly can be done, with roughly the same techniques
that are used to mount the root file system in the non-initrd case.
- Ted
next prev parent reply other threads:[~2012-03-04 1:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-03 17:18 speakup bug John G. Heim
2012-03-03 17:39 ` Alan Cox
2012-03-03 22:01 ` Ted Ts'o
2012-03-04 0:01 ` John G. Heim
2012-03-04 0:18 ` Samuel Thibault
2012-03-04 0:21 ` Samuel Thibault
2012-03-04 0:41 ` Ted Ts'o
2012-03-04 0:43 ` Samuel Thibault
2012-03-04 0:44 ` Samuel Thibault
2012-03-04 1:41 ` Ted Ts'o [this message]
2012-03-04 0:26 ` Ted Ts'o
2012-03-04 2:03 ` John G. Heim
2012-03-04 21:06 ` Alan Cox
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