linux-kernel - Re: Wait for console to become available, v3.2

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Message-ID: <Pine.LNX.4.44L0.0904242309300.3926-100000@netrider.rowland.org>
Date:	Fri, 24 Apr 2009 23:11:03 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Jamie Lokier <jamie@...reable.org>
cc:	David VomLehn <dvomlehn@...co.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux USB Mailing List <linux-usb@...r.kernel.org>,
	Linux Embedded Mailing List <linux-embedded@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Wait for console to become available, v3.2

On Sat, 25 Apr 2009, Jamie Lokier wrote:

> I'm thinking this broader use:
> 
>     - My boot _script_ is waiting for a disk which identifies as
>       UUID=392852908752345749857 to appear before it can mount it on
>       /data.  If there's no such disk, it proceeds without it.  It's a
>       USB disk, behind a USB hub.
> 
>     - My boot script is looking to see if I'm holding down 'z' on the
>       keyboard, to do something different.  But how does it know if
>       there's a USB keyboard plugged in (behind two USB hubs) that
>       hasn't finished being detected?
> 
> It just seemed to fit comfortably into what's being discussed.

Are you suggesting this new interface be exported to userspace somehow?

Alan Stern

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