Hi there,

I am attempting to compile openWRT for the Mikrotik RB951Ui-2HnD router. I 
have applied path /patch/4773/ to my development trunk. I can compile and boot 
the initramfs image, I have been able to write the image to to flash and boot 
off my flash image. I can log into the router and most things seem to be 
working.

I'm uncertain how to enable or toggle the LED's from user space so some 
pointers there would be appreciated.

The thing that is worrying me the most is the USB does not appear to work. I  
can toggle the power via the GPIO pin, but no devices seem to be detected.

dmesg shows 0.090000] MIPS: machine is MikroTik RouterBOARD 951Ui-2HnD
so I know that the board is been detected correctly.

and 

[    5.860000] usbcore: registered new interface driver usbfs
[    5.970000] usbcore: registered new interface driver hub
[    6.050000] usbcore: registered new device driver usb
[    6.130000] leds-gpio: probe of leds-gpio failed with error -16
[    8.210000] eth0: link up (100Mbps/Full duplex)
[    9.040000] eth0: link down
[   10.290000] NET: Registered protocol family 10
[   10.350000] NET: Registered protocol family 8
[   10.400000] NET: Registered protocol family 20
[   10.460000] nf_conntrack version 0.5.0 (1976 buckets, 7904 max)
[   10.540000] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   10.630000] usbcore: registered new interface driver cdc_wdm
[   10.700000] Loading modules backported from Linux version 
master-2014-01-23-0-g62c147d
[   10.790000] Backport generated by backports.git backports-20140124-0-
g1256d3e
[   10.880000] ip_tables: (C) 2000-2006 Netfilter Core Team
[   10.970000] usbcore: registered new interface driver usbserial
[   11.040000] usbcore: registered new interface driver usbserial_generic
[   11.120000] usbserial: USB Serial support registered for generic


seems to indicate that the usb core is running

but lsusb displays and error and no ttyUSB0 devices appear in /dev/ nor can I 
find them in the /sys tree

Am I missing anything as I can't seem to talk to my PL2303 usb to serial 
converter
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