Wakeup from USB device
 

Notwithstanding a lot of Google searches, I still did not find any hint on how to do the following: resume from ACPI S3 (suspend to ram) via an USB device (for instance an USB mouse movement).

If anybody has already been through this problem, it would be really helpful to me to know where to find a good reference...

PS: I'm using Fedora Core 4, but suggestions will be ok in any distribution.
PPS: BIOS is already set to the correct values.

The problem was in the motherboard settings. I set the BIOS correctly but I didn't check the +5V Standby to USB devices. Moving the jumpers to the correct position I fixed the problem.
Hope it can help anybody with the same problem...