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SubjectRe: mmc_spi stopped working
On Wed, 17 Oct 2007 12:37:13 -0700
David Brownell <> wrote:

> That issue is 49dce689ad4ef0fd1f970ef762168e4bd46f69a3, the
> classdev-elimination patch from Tony Jones. It broke the
> "does this bus have more than one device" test by relocating
> the relevant sysfs nodes.
> Quick workaround for that one is to disable the fault return
> after that test.

Annoying. Feel free to ping me when you've pushed fixes to Linus.

> When enumerating MMC cards using SPI, don't support the "just probe"
> mechanism since it doesn't always work. Instead, always wait for the
> reset to complete before issuing the next request.
> This is a regression ... this SanDisk MMC card used to enumerate with
> no trouble, despite this particular spec violation.
> Signed-off-by: David Brownell <>

I think I'll have to NAK this as I believe it breaks MMC 4.2. I'll check
and get back to you.

-- Pierre Ossman

Linux kernel, MMC maintainer
PulseAudio, core developer
rdesktop, core developer
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