Do you have a bus trace? I think this is what you need. A bus trace
in Windoze would also be helpful.
--
Fernando Urbina
USB Technology Team
Apple Computer, Inc.
On Jun 14, 2005, at 9:52 PM, Eric Smith wrote:
I've got a full speed USB device, and am writing data in 64 byte
packets to a bulk endpoint. This is just sitting in a for loop,
doing a bunch of WritePipe() calls. My download speed over several
megabits is only about 500Kbps. I'm using Tiger, and a dual 1.8
G5. I get about the same performance on a G4 iBook running Tiger.
The same USB device gets about 6Mbps download on a windows-based
machine. I did not write the windows code, so I don't know any of
the details of that implementation.
Any ideas or suggestions?
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