Macbook Pro will not go to sleep at some moment!

Question

This happens frequently, I try to put my Macbook Pro to sleep and it just wakes up again after a couple of seconds. Every time it does, the fan blows heavily for a couple of seconds. The computer runs as it should, only problem is, it runs while it should be asleep sometimes as well.
This is what terminal tells me if this occurs if I type syslog |grep -i "Wake reason ="
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: Wake reason = EHC1
This is wat syslog tells me:
Fri Jan 14 16:24:46 MacBook-van-*-* kernel[0] <Debug>: hibernatewriteimage done(e00002eb)
Fri Jan 14 16:24:46 MacBook-van-*-* kernel[0] <Debug>: sleep
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: Wake reason = EHC1
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: System Wake
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: Previous Sleep Cause: 5
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: The USB device HubDevice (Port 1 of Hub at 0xfd000000) may have caused a wake by issuing a remote wakeup (2)
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: en1: 802.11d country code set to 'X3'.
Fri Jan 14 16:24:48 MacBook-van-*-* kernel[0] <Debug>: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 132 136 140
Not one (USB) port is used, Bluetooth is turned of, I do not let computers wake me up over the network, wireless is turned on, but it doesn't make a difference (I have tried)...
Some more info about my mac is:
Boot-ROM-versie: MBP61.0057.B0C
Modelname: MacBook Pro
Model: MacBookPro6,2
It is a complete mystery to me why this machine is doing this, it has been doing it for a while now and I'm starting to get desperate because I can not miss it for a week for reperation...
Message was edited by: ShortyEx

Answer 1

Maybe this helps:
I found out that if the wake reason is the USB hub itself ("Hub at 0xfd000000") then a virutal usb device can be the cause. I fixed it myself by uninstalling virtual webcams. More exactly, i had the Google+ Hangout plugin installed, which installed 2 more virual webcams.
Try uninstalling everything related to that. For the Google stuff there is an uninstaller in Library/Application Support/Google/GoogleVoiceAndVideoUninstaller.app.
After that, the problem was gone for me.