[hafqa] [hafqa] [Bug 2672] Sandisk 8GB microSD not detected

[From: bugzilla-daemon at lists.maemo.org]

https://bugs.maemo.org/show_bug.cgi?id=2672





------- Comment #3 from maemo at subs.maneos.org  2007-12-30 02:49 GMT+3 -------
Yeah, I did see that thread (and even referenced it in the description) but
thanks for pointing it out because while re-reading it I suddenly remembered I
have a 512MB microSD card & microSD-SD adapter lying around (came with the Neo,
never had a use for them before) and did some more testing.

It turns out that the 512MB card doesn't work in the N810 either using the same
adapter as before.  In fact it even throws CRC errors before menelaus gives up
and switches it of (whereas the 8GB one was just failing silently):

[37858.343750] menelaus 1-0072: Setting voltage 'VMMC' to 3100 mV (reg 0x0a,
val 0xf8)
[37858.367187] menelaus 1-0072: Setting voltage 'VMMC' to 3000 mV (reg 0x0a,
val 0xb8)
[37858.406250] mmci-omap mmci-omap.1: command CRC error (CMD55, arg 0x00000000)
[37858.406250] mmci-omap mmci-omap.1: command CRC error (CMD55, arg 0x00000000)
[37858.429687] mmci-omap mmci-omap.1: command CRC error (CMD55, arg 0x00000000)
[37858.429687] mmci-omap mmci-omap.1: command CRC error (CMD55, arg 0x00000000)
[37858.429687] mmci-omap mmci-omap.1: command CRC error (CMD55, arg 0x00000000)
[37858.429687] mmci-omap mmci-omap.1: command CRC error (CMD55, arg 0x00000000)
[37858.437500] menelaus 1-0072: Shutting off 'VMMC'

On the other hand, both cards work fine on both slots of both N800s when using
the microSD-SD adapter.  I even played some video off the 8GB one to make sure
there are no read errors, no problems whatsoever.

So it seems that card & tablets are ok, the issue is definitely caused by the
adapter, and it affects non-HC cards too.  Just to confuse things a bit, the
working adapter is made by Sandisk, while the non-working one isn't (for what
it's worth, it's one of these:
<http://www.mobymemory.com/products/MobyMemory/microSD-to-miniSD-Adapter-(for-miniSD-devices).asp>).

I will try to find and test some alternative adapters, but it's going to take
several days due to the holidays.  Will report back when I have more info.


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