hi ,
While implementing sensors for streaming data transfer(isoc) , i needed to
know the isochronous bandwidth allocation scheme being followed in usb.c .
To be more precise, the following lines, from usb.c
if (!isoc) /* Input or Output */
{
tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L;
return (9107L + BW_HOST_DELAY + tmp);
} /* end not Isoc */
/* for isoc: */
tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L;
return (((input_dir) ? 7268L : 6265L) + BW_HOST_DELAY + tmp);
}
Can somebody explain me the meaning of all the numbers used ?? What is the
basis of using the above formula..
Any help will speeden up my development progress.
thanks
rm
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