[Prism54-devel] prism54-usb firmware loading

[Margit Schubert-While]

Got this reply from Oliver Nuukum:
 > Because vmalloced memory isn't physically contiguous and hence cannot
 > be DMAed in one go. You need to walk the page tables like the usb video
 > drivers do, or build a scatter/gather table for the _sg_ usb api functions.

 >Regards
 >Oliver

And I just checked the bluetooth drivers. They kmalloc a buffer
and copy over. (eg. bfusb.c)

Margit