On 10/6/03 11:00 AM, "Dave Koziol" <email@hidden> wrote:
> Also interesting, is that it seems to be exactly 2 seconds or exactly 3
> seconds.
>
> If I use the default, or increase my time out to something great than 2
> seconds, I get the expected longer timeout, so I think my code is
> behaving correctly.
>
> Is there anything I can do to make these timeouts happen quicker?
The granularity of the timeout mechanism is 1 second and this is
asynchronous to when you submit the request. So, every second we will see
if your transaction has exceeded its timeout value and if so, it will return
the transaction with timeout.
What version of the OS are you running? Can you try with 10.2.8 (or
anything later if you have access to it ;-)?
We had a bug that I believe we fixed (checking on it) where we would time
out each phase of a control transaction, instead of the whole device request
(Control transactions are made up of 2 or 3 different transactions on the
bus: Setup, Status, and Data if needed). So, if you specified a timeout,
it would actually be returned to you in 2*timeout or 3*timeout.
--
Fernando Urbina mailto:email@hidden
USB Technology Team work: 719.534.9387
Apple Computer, Inc. fax: 719.532.0981
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