From: "Wolfgang Mües" <wolfgang.mues@auerswald.de>
To: "Matt Fleming" <matt@console-pimps.org>
Cc: "David Brownell" <dbrownell@users.sourceforge.net>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fixes and enhancements for the MMC SPI driver
Date: Thu, 8 Jan 2009 09:22:08 +0100 [thread overview]
Message-ID: <200901080922.08773.wolfgang.mues@auerswald.de> (raw)
In-Reply-To: <20090106161006.GA28020@console-pimps.org>
Matt,
Am Dienstag, 6. Januar 2009 schrieb Matt Fleming:
> Which cards are you having issues with?
This was a noname 4 GByte SDHC card. If you write a continious stream of data
at max. speed, the card generates a BUSY signal every 10 seconds for nearly a
whole second.
> Modifying the code to no longer abide by the standard doesn't seem like a
> win to me.
I strongly disagree with you.
While each and every SD card should conform to the standard, a driver for a
host controller should be as forgiving as possible. If the driver cannot cope
with cards sold today, the user has a bad experience.
I code drivers for people and not for standards.
Remember, this is only a timeout. Lengthen the timeout will have no
consequences for cards which behave.
best regards
i. A. Wolfgang Mües
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next prev parent reply other threads:[~2009-01-08 8:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-06 14:17 Wolfgang Mües
2009-01-06 16:10 ` Matt Fleming
2009-01-08 8:22 ` Wolfgang Mües [this message]
2009-01-08 9:24 ` Matt Fleming
2009-01-08 10:19 ` Wolfgang Mües
2009-01-12 10:50 ` Wolfgang Mües
2009-01-24 12:23 ` Pierre Ossman
2009-01-12 23:45 ` Andrew Morton
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