Igor Furlan wrote:
>
> On Sun, Jun 22, 2014 at 11:41 PM, Tim Roberts <t...@probo.com
> <mailto:t...@probo.com>> wrote:
>
> On Jun 22, 2014, at 1:00 PM, Igor Furlan <igor.fur...@gmail.com
> <mailto:igor.fur...@gmail.com>> wrote:
> .
> > It returns -110 (aka it fails).
>
> You know that -110 tells you more than just “it fails”, right?
> Errno 110 is ETIMEDOUT. Do you have a very short timeout?
> Timing in a VM is somewhat “flexible”.
>
>
> No, I did not know. To be honest with you, I did not look for. My
> bad. Sorry.
>
> About "Do you have a very short timeout?"
> I do not know. How do I change (increase) the 'timeout' ?
Did you check the API documentation? The last parameter to
usb_control_msg is the timeout in milliseconds.
To a certain extent, however, I am just blowing smoke. Control messages
usually complete very quickly. Your symptoms seem to indicate some more
fundamental problem, and I don't know what to suggest.
One of the advantages of libusb is that it crosses platforms. Why don't
you run your code on Windows?
--
Tim Roberts, t...@probo.com
Providenza & Boekelheide, Inc.
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