Hi Sebastien
Can you share you code? I'm trying to get my Due connected to a Nexus 7 running 4.2.1 and having no luck. Due just charges and doesn't seem to recognise the result.
Not sure earlier comments by PeterVH about the right cable being needed are true: the source (in uotghs_host.c) seems to disable the id pin and force the Due into host mode (see otg_disable_id_pin()). I can confirm this works, as I have a micro-B to full sized female A with a floating id pin (ie not tied to ground as it should be) but the due correctly acts as a host to a mouse using this adapter.
Do you know what the ADK code for the due is based on? Its seems very different to both the google ADK2011 code and the ADK2012 code.
Edit: interestingly it works (reasonably reliably) with our Motorola Xoom running 4.1.2, without any modification to the sketch. Am running with debug on.
Edit2: downgraded Nexus 7 to 4.1.2 and it still doesn't work - interestingly it doesn't even register any state change in the usb code when I plug it in.
Thanks
Tom