linux-kernel - Re: tty: add 'active' sysfs attribute to tty0 and console device

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Date:	Wed, 17 Nov 2010 17:01:08 -0500
From:	Valdis.Kletnieks@...edu
To:	Lennart Poettering <mzxreary@...inter.de>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Kay Sievers <kay.sievers@...y.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Greg KH <greg@...ah.com>, Werner Fink <werner@...e.de>,
	Jiri Slaby <jslaby@...e.cz>
Subject: Re: tty: add 'active' sysfs attribute to tty0 and console device

On Wed, 17 Nov 2010 00:10:24 +0100, Lennart Poettering said:

> When two users A and B are logged in, on tty1 resp. tty2, then as long
> as tty1 is active user A should get access to the sound card, usb key,
> .... As soon as we switch to tty2 user B should.

So I change to tty1, plug in my 8G USB memory stick, and I have access to it.
I start copying something big to it, and change to tty2 to do something else
while the long copy happens...

... and my copy craps out because tty1 lost access to the USB.

Brilliant.


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