linux-kernel - Re: [uml-devel] um: TTY fixes (?)

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Date:	Thu, 07 Jun 2012 17:18:37 +0200
From:	Richard Weinberger <richard@....at>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Boaz Harrosh <bharrosh@...asas.com>,
	user-mode-linux-devel@...ts.sourceforge.net,
	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	viro@...iv.linux.org.uk, jslaby@...e.cz, alan@...ux.intel.com
Subject: Re: [uml-devel] um: TTY fixes (?)

Alan, Jiri!

If I omit ->hangup(), mingetty (And all other getty implementations) are unable to open /dev/ttyX.
open() returns -EIO.
Currently I'm testing it on FC12.
Also if I do something like "echo foo >/dev/tty1" it fails with -EIO.
And now the strange thing, opening and writing an unknown (unknown to this upstart rubbish) tty works.
E.g.: echo foo >/dev/tty10.

Any ideas what's going wrong?

Thanks,
//richard

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