Re: REGRESSION: usbdevfs:Use-scatter-gather-lists-for-large-bulk-transfers

[Henrik Rydberg]

Hi Hans,

> Oh what fun (not). The best way to figure out what really is going
> on is to get some usb level traces. Note my first hunch is that what
> you're seeing is a device firmware bug, as this patch together with
> a new libusb (which you seem to also have) will make bulk transfers
> run slightly faster, which might be just enough to overwhelm your
> device ...

Or, the large bulk transfer actually never worked in the first place.
The list you gave me seemed boringly long, so I read the patch more
closely instead. The fix below is the result. Greg, will you please
take it through your tree?

Thanks,
Henrik