I'll try to get USB working on this device and setup 0 resister at L1, 22 Ohm resisters at data lines and 15 KOhm pull-down resisters (I has not found SMD and soldered common into the USB slot directly. All seems to be OK, but if I plug any USB device I see only these lines in dmesg:

usb 1-1: new full speed USB device using ar71xx-ohci and address 6
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using ar71xx-ohci and address 7
usb 1-1: device descriptor read/64, error -62
usb 1-1: device descriptor read/64, error -62
usb 1-1: new full speed USB device using ar71xx-ohci and address 8
usb 1-1: device not accepting address 8, error -62
usb 1-1: new full speed USB device using ar71xx-ohci and address 9
usb 1-1: device not accepting address 9, error -62
hub 1-0:1.0: unable to enumerate USB device on port 1

There are tho photos of my USB mod and some strange things that i can't understand.

Upper side of router main-board:

red - is +5 power, zero resister
green, white - data 22 om resisters
black - GND (mass or ground)

in default state without no any data resisters soldered the resistance between green and black (GND) is exists and equal ~1.3 KOhms - (all ok, or something wrong?), the resistance between white and black point are going to infinite - thats right in my opinion.
After soldering all resistors and USB cable the resistance of green data is more less (1.2k) than white (15k).

Backward side of router main-board:

What I'm doing wrong?

Sorry for my English.

Additional info, I has tested PCB voltage with multimeter and got the next results (D- is white and D+ is green):
+5V = +5.02 V
D+ = 0 V
D- = 0 V

With USB 1.1 Device plugged:
+5V = +5.02 V
D+ = 2.9 V
D- = 0 V

With USB 2.0 Device plugged:
+5V = +5.02 V
D+ = 3.02 V
D- = 0 V

All seems to be OK, but in what reason i can get error -62? It seems like data not sending/receiving at all!!!

(Last edited by Lirein on 22 Apr 2011, 13:21)

Where can find 22 Ohm resisters?

(Last edited by hoatienii on 14 Aug 2014, 03:09)