linux-kernel - Re: [PATCH 4/6] drivers:misc: sources for Init manager module

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Message-ID: <20100324172647.572e3cb8@lxorguk.ukuu.org.uk>
Date:	Wed, 24 Mar 2010 17:26:47 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Pavan Savoy <pavan_savoy@...oo.co.in>
Cc:	Marcel Holtmann <marcel@...tmann.org>, Greg KH <gregkh@...e.de>,
	PavanSavoy <pavan_savoy@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/6] drivers:misc: sources for Init manager module

> Isn't there a mechanism for the tty_set_ldisc to do what _open does ?
> I mean there might be plenty of devices on UART which might not need /dev/tty at all ? i.e An App need not open for a ldisc to be installed.

There is no mechanism to have an open tty without having an open file
attached to it - and changing that would be very very non trivial. Plus
you still need a way to tell the kernel you want the device in question
active. That probably should get addressed some day but its not a quick
fix up!

Alan
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