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SubjectRe: [patch 4/4] sdio: disable CD resistor
On Tue, 07 Aug 2007 15:46:36 +0100
David Vrabel <david.vrabel@csr.com> wrote:

>
> Is there an example driver for a host that uses pin 1/DAT3 sensing for
> card detection? I'm curious about how removal detections work.
>

Both wbsd and sdhci have experienced hardware with this. In sdhci this
is hidden completely in hardware, but wbsd has to do some funky logic
to handle the problem.

> App Note on card detection goes into the use of this resistor in more
> detail but I don't believe this document is publicly available :(.
>

SD is a wonderful world. :/

--
-- 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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