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Date: Sat, 5 Sep 2009 16:22:51 +0100
From: Jamie Lokier <jamie@shareable.org>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
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	Mike Rapoport <mike@compulab.co.il>,
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	Linux Media Mailing List <linux-media@vger.kernel.org>
Subject: Re: [PATCH] Add RGB555X and RGB565X formats to pxa-camera
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References: <200908031031.00676.marek.vasut@gmail.com> <4A76CB7C.10401@gmail.com> <Pine.LNX.4.64.0908031415370.5310@axis700.grange> <200909050926.48309.marek.vasut@gmail.com> <Pine.LNX.4.64.0909051037300.4670@axis700.grange>
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Guennadi Liakhovetski wrote:
 Now RGB555 looks like (from wikipedia)
> 
> 15  14  13  12  11  10  09  08  07  06  05  04  03  02  01  00
> R4  R3  R2  R1  R0  G4  G3  G2  G1  G1  B4  B3  B2  B1  B1  --
> 
> (Actually, I thought bit 15 was unused, but it doesn't matter for this 
> discussion.)

You are right: sometimes RGB555 means bit 15 is unused.  Wikipedia
isn't always right.

-- Jamie