Driver sd needs updating please use bustype waydating
This bears a risk of accidental loss of data, as a host device may treat a card with an unrecognized file system as blank or damaged and reformat the card.The SD Association provides a formatting utility for Windows and Mac OS X that checks and formats SD, SDHC, and SDXC cards.
I will continue to update this page as bugs are fixed, so watch this space...
Double data rate operation at 50 MHz (DDR50) is also specified in Version 3.01, and is mandatory for micro SDHC and micro SDXC cards labeled as UHS-I.
In this mode, four bits are transferred when the clock signal rises and another four bits when it falls, transferring an entire byte on each full clock cycle, hence a 50 MB/s operation could be transferred using a 50 MHz clock. The physical interface and pin-layout are the same as with UHS-II, retaining backward compatibility. Use of UHS-I requires that the host device command the card to drop from 3.3-volt to 1.8-volt operation over the I/O interface pins and select the four-bit transfer mode, while UHS-II requires 0.4-volt operation.
This is 517241 and can be worked around in Linux 2.6.30 by using the that make it awkward to adjust the volume of some of the laptop's audio controls.
The problem is that several controls have a common name ('Input Source' and 'Capture').