I didn't say there was a reset-pin in USB. I was talking about software-resets via the data lines.

I found this in a USB-spec document, you'll understand what I mean soon enough:

"A common Windows Enumeration involves the following steps,
1. The host or hubs detects the connection of a new device via the device's pull up resistors on the data pair. The host waits for at least 100ms allowing for the plug to be inserted fully and for power to stabilise on the device.
2. Host issues a reset placing the device in the default state. The device may now respond to the default address zero.
3. The MS Windows host asks for the first 64 bytes of the device descriptor.
4. After recieving the first 8 bytes of the Device Descriptor, it immediately issues another bus reset.
5. The host now issues a Set Address Command, placing the device in the addressed state.
6. The host asks for the entire 18 bytes of the Device Descriptor.
7. It then asks for 9 bytes of the Configuration Descriptor to determine the overall size
8. The host asks for 255 bytes of the Configuration Descriptor.
9. Host asks for any String Decriptors if they were specified.
At the end of step 9, Windows will ask for a driver for your device."