Linux ACPI
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From: Len Brown <lenb@kernel.org>
To: Zhang Rui <rui.zhang@intel.com>
Cc: luke lin <luke.lin1105@gmail.com>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	Luke lin <luke1105@gmail.com>
Subject: Re: Question about ACPI Video
Date: Mon, 25 Jan 2010 22:24:02 -0500 (EST)	[thread overview]
Message-ID: <alpine.LFD.2.00.1001252223270.20770@localhost.localdomain> (raw)
In-Reply-To: <1264467484.22448.310.camel@rzhang1-desktop>

> > why after level == max_level, it will still need set_level again?
> > is this a bug, or it is necessary.
> > 
> Because setting the backlight to max_level is just to check if _BQC uses
> indexed value. We need to set the backlight back after this is done.

perhaps a good place for a comment?

thanks,
Len Brown, Intel Open Source Technology Center


  reply	other threads:[~2010-01-26  3:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-25  9:45 Question about ACPI Video luke lin
2010-01-26  0:58 ` Zhang Rui
2010-01-26  3:24   ` Len Brown [this message]
2010-01-27 18:02   ` Edward Shao
2010-01-28  7:04     ` Zhang Rui

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