linux-kernel - Re: /dev/vcs - poll for changes?

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Message-ID: <87ocuuqt33.fsf@basil.nowhere.org>
Date:	Sat, 18 Apr 2009 10:11:44 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"Phil Endecott" <phil_wueww_endecott@...zphil.org>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: /dev/vcs - poll for changes?

"Phil Endecott" <phil_wueww_endecott@...zphil.org> writes:

> Dear Experts,
>
> Is there a way to detect when the content of a /dev/vcs* has changed?
> I have some code that currently polls, which is obviously sub-optimal.
> I was hoping that there would be some trick like look at the
> modification time, but I haven't found anything.  If this isn't
> currently possible, how easily could it be added?  What would the
> preferred API be, if it were added?

The first question would be: why do you want to do this?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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