maemo.org - Talk - View Single Post - Massive interactivity improvement under high I/O load!

retsaw	2011-02-18 , 00:36
Posts: 701 \| Thanked: 585 times \| Joined on Sep 2010 @ London, England	#52

Originally Posted by joerg_rw

I'd guess it's done by the MMC-driver in kernel. There's definitely no hw switching off uSD slot the hard way, but given the fact you can ruin a card by inadvertently removing it, I won't suggest to override this mechanism.

/j

Do you know what the MMC-driver actually does? It appears to simply make the device unavailable without unmounting it, but appearances can be deceiving so maybe it does more than that.

And when you say ruin, do you mean simply corrupt the data on it by not leaving it in a clean state or do you mean electrically damage so it can't be used again? If you just mean might corrupt the data on the card, I don't see how the driver removing the device without unmounting the filesystem is any better than yanking the card.

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