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USB port addresses

Posted: Sat May 19, 2018 1:05 pm
by Alpin-Flier
Hi Roar

Sometimes I have a problem with the USB port addresses. It happens e.g. after a temporary unplugging of one USB device, but also after the last Windows 10 Update. All IDX connections are lost, because USB port numbers have changed automatically. This is a very annoying behaviour, because I must redirect about 25 USB addresses to IDXs each time.

Is there a possiblity to fix these USB port addresses? E.g. switch somehow to manual address distribution, so that changes are only possible by user interaction?

Thanks for informations and best regards
Urs

Re: USB port addresses

Posted: Tue May 22, 2018 10:35 pm
by mvr1918
The allocation of USB numbers is something that is handled by Windows OS and/or SIOC. It is very poor documented how this actually works, both in Windows and SIOC. I have really never understood how this works. There is no way to handle this in OC4BAv4, it must be done in Windows and/or SIOC. Try to send a question to Opencockpits on this issue. If I can get more info about the assignment methods used by SIOC, I can have a look.