Hi!

 

Not found covered this question in blog / general faq.

 

Where to setup, which blockdevice get mounted as drive on client usb port?

You can check this link http://linux-sunxi.org/USB_Gadget

 

I'm using Igor Image 3.4.108 Debian wheezy and sucessfully implement the USB OTG as ethernet or as serial and I think it is not hard to do it for mass storage.

 

Basically what you should do :

1. enable the module on the kernel configuration (you can check which point to enable on the link above) and compile it (using Igor script).

2. Update the kernel module using the kernel image from no. 1

3. Enable USB OTG functionality on fex script. DONT FORGET TO ENABLE THE USB_DETECT_TYPE TO 1 (default for usbc0/usb otg is 0). please refer to this link http://linux-sunxi.org/Fex_Guide

4. load the module from console or enabled from /etc/modules.

5. Install driver on the client PC (if it is windows) for ethernet or serial.