linux-kernel - Re: [PATCH] Optional Beeping During Resume From Suspend To Ram.

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Message-Id: <200706210009.27457.rjw@sisk.pl>
Date:	Thu, 21 Jun 2007 00:09:26 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Nigel Cunningham <nigel@...el.suspend2.net>
Cc:	LKML <linux-kernel@...r.kernel.org>, pavel@....cz,
	Andrew Morton <akpm@...l.org>, Andi Kleen <ak@...e.de>
Subject: Re: [PATCH] Optional Beeping During Resume From Suspend To Ram.

Hi,

On Tuesday, 19 June 2007 23:33, Rafael J. Wysocki wrote:
> On Tuesday, 19 June 2007 13:18, Nigel Cunningham wrote:
> > Hi all
> > 
> > Here's what I have after today's work.
> > 
> > I haven't yet been able to test on x86, but can confirm that it works okay on
> > x86_64. I'm currently working towards testing it on my old Omnibook. My P4
> > desktop won't resume from suspend to ram at all, and hasn't produced any
> > beeps.   
> > 
> > I needed to move the BEEP invocation to after the data segment is reloaded,
> > so that the test could access the variable. That was pretty tricky to find -
> > no oops or anything bad prior, it just didn't beep when expected.  
> > 
> > A couple of notes:
> > 
> > - I'd like to put the BEEP macro somewhere that can be shared by x86 32 and
> > 64. If that's a good idea, any suggestions on where? Nothing occurs to me
> > straight off.  
> 
> I don't know either.  I think Andi is the right person to ask (CC added).
> 
> > - I've just switched from Evo to Kmail. Please let me know if there's any
> > mangling of the patch. 

Unfortunately, the message is encoded as "quoted printable" which results in
the whitespace being mangled.

> The patch looks good to me.  I'll try to run it on an i386 tomorrow.

I've recoded it and rediffed against -rc5 with the hibernation and suspend
patchset.  The resut is at

http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.22-rc5/patches/29-Optional-Beeping-During-Resume-From-RAM.patch

Well, my i386 test box doesn't seem to be able to beep at all.  I'll have to
look for another one ...

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth
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