I have managed to mod my router to support usb devices that required high power from usb host ... like 2,5'' harddrive's (via usb-to-ide adapters) ,and others
if u take look on bottom of wgt board u will find a small AIC 1526-1 8-pin chip . It 's "Dual USB High-Side Power Switch" . Chip is very small only 4x5 mm !
_______
-|1 U 5|- the pin 4 is solder to GND ,and Pin 8 is not connected
-|2 6|-
-|3 7|-
-L4____ 8|-
To get it done u must remove connection between pin 4 and the pad ... i use small sharp knife to cut it off from the pad . Dont mind the pad ... mind the pin !! Do the same with pin no 8 .Now take thin wire and connect pin 4 to pin 1 ,and pin 8 to the pin 5.
Also there is small black rectangular diode between chip and the netgear usb port .Connect their ends with thin wire .This will remove small voltage drop out from diode .Now u can use your 2,5 '' usb-to-ide adapter without external power source and even hide it inside the device !! The port should draw 1A current ...i think It's enough to power any decent usb device :] .The usb voltage is +5V under load without diode voltage drop out
picture:
netgear wgt634u usb power mod
kind regards
(Last edited by nicefile on 11 Feb 2012, 23:00)