What type of endpoints does your camera have? Your maxPacketSize of
4096 does not make sense for bulk or isochronous, so something is
amiss here.
--
Fernando Urbina
USB Technology Team
Apple Computer, Inc.
On Apr 21, 2005, at 8:49 PM, She Jian Chia wrote:
I have create a userland USB driver for my USB camera. And when i
use the
read pipe asynchronous method to read the video frame continously from
camera, the camera is able to do the reading with the max packet
size(4096
bytes for this case). But now the problem is, when i compare the
fps to
window's fps, i found the fps on mac is much more slower(the packet
size is
the same on both platform). So what i want to know it how can i
increase
the speed of reading from pipe. Hope someone here would enlighten
me..Thanks!
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