Re: [PATCH] ar9170usb: add mode-switching for AVM Fritz!WLAN USB N devices in cdrom mode

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Am Mittwoch, 4. November 2009 19:13:03 schrieb Josua Dietze:
> There are many devices around now which either "re-expose" the
> pseudo CDROM or make an additional flash card slot available after
> being switched. Unfortunately, I have had only one of these on my
> desk for a while to run tests with it. An USB reset dropped this
> device (Sony Ericsson MD400) back to default mode right away, driver
> partition freshly connected and SD slot gone.

This has a tendency for an ugly cycle.

Defective SD card -> error handler resets -> reader disconnected
-> udev switches mode -> SD reader scanned -> defective SD card -> ...

I think we need a quirk for such devices. I think it is cleaner to have
it add usbcore's level as we cannot be sure this is always limited
to the storage driver. Comments?

	Regards
		Oliver

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