USB issues on the MacBook Pro 2008-2011? The solution!

Yesterday I recognized that the latter USB port doesn’t seems to be broken. I tried to sync my iPad, but it got no connection the the MacBook. Even the dmesg log showed no activity after connecting any device to the USB port. The front USB port worked without any issues. What first seemed to be an hardware issues turned out to be a interesting foible of the MacBook family. To cut a long story short, the port isn’t broken. I found the solution somewhere on the internet but don’t know exactly where by now, so thanks to the original author on this way.