Am Sonntag, 31. Oktober 2004 00:13 schrieb Alan Stern:
> You missed the point -- the users of st and sg I was referring to are
> people using those drivers with USB-based devices. So the quality or
> quantity of SCSI adapter support is irrelevant to this discussion. (And
> remember that cdrecord uses the sg interface too!)
Both st and sg will fall back to internal bounce buffers if the pages cannot
be accessed. USB is slower than RAM, so the performance loss is small.
True SCSI is not so slow compared to memory.
To libusb that is a correctness issue, however. Either code similar
to st and sg is needed or we allocate the RAM in kernel.
Regards
Oliver
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