[PATCH 22/22] usb: document that URB transfer_buffer should be aligned

Oliver Neukum oneukum at suse.com
Thu Mar 30 13:58:40 PDT 2017

Am Donnerstag, den 30.03.2017, 11:55 -0400 schrieb Alan Stern:
> I'm pretty sure that usb-storage does not do this, at least, not when 
> operating in its normal Bulk-Only-Transport mode.  It never tries to 
> read the results of an earlier transfer after carrying out a later 
> transfer to any part of the same buffer.

The storage driver takes buffers as the block layer (or sg) provide
them, does it not?


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