.
The touch input status in USBMS mode *might* be H2O and/or zforce specific: I know I've had to forcibly re-enable it on wakeup in KOReader, because it sometimes failed to wake-up on its own.
On the off-chance you don't actually need WiFi, you can check if the same trick works there:
Code:
echo "a" > /sys/devices/virtual/input/input1/neocmd