sdio: enhance IO_RW_EXTENDED support

[David Vrabel]

These three patches enhance the support for the SDIO IO_RW_EXTENDED command.
The block size of functions is managed and the I/O ops (sdio_readsb() etc) are
extended to handle arbitrary lengths of data (by using multiple commands).

I've not yet had a chance to test this stuff as I don't (yet) have the time to
write a Bluetooth Type-A driver so these are posted as an example of the sort
of API I'd expect.

David
-- 
David Vrabel, Software Engineer, Drivers group Tel: +44 (0)1223 692562
CSR plc, Churchill House, Cambridge Business Park, Cowley Road, CB4 0WZ 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/