linux-kernel - Re: [PATCH 2.6.19] mmc: Add support for SDHC cards (Take 2)

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Date:	Thu, 04 Jan 2007 08:32:02 +0100
From:	Pierre Ossman <drzeus-list@...eus.cx>
To:	Philip Langdale <philipl@...rt.org>
CC:	Alex Dubov <oakad@...oo.com>, Andrew Morton <akpm@...l.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.19] mmc: Add support for SDHC cards (Take 2)

Philip Langdale wrote:
> Pierre Ossman wrote:
>   
>> Amen to that. All hw vendors that implement this particular form of
>> brain damage should be dragged out and shot.
>>
>> I'll fix a patch for this later on.
>>     
>
> See my updated Take 3 patch. I've implemented a uniqueness fix by
> adding additional RSP flags do make R6 and R7 unique. I don't know
> if this is what you wanted, but it works without being too ugly.
>
>   

NAK. If two response types look the same over the wire, then they should
have the same definition. Hardware that uses type codes is simply
broken. There are a lot of sinners unfortunately...

> However, also note my caveat that it's not clear if tifm or imxmmc
> can ever be made to work with SD 2.0 cards. *sigh*
>   

They probably can. They just need a fix for their switch statements.

Rgds

-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org

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