Which android devices support the ADK / open accessory

Question

Is there a list anywhere of which Android devices (phones, tablets) support the ADK / accessory mode? From what I have read, I known that the Nexus One, Nexus S and Xoom do support it. Are there any other devices (custom ROMs included) that also support it? I have an ADK and can't get it working with my phone, I am basically looking for the cheapest phone that I can use with ADK.

** UPDATE ** I found this list of tablets that work with the ADK

Answer 1

The offical Android 2.3.4 is based on the kernel 2.6.35, ADK need kernel 2.6.35. Some Android 2.3.4+ do not support adk because the kernel is not 2.6.35+. I used to copy the adk need jar into my milestone (Android 2.3.5, kernel 2.6.32, cm7), and install the DemoKit.apk but it doesn't work. The phone I know ADK works: Nexus One, Nexus S, HTC Desire(need to do something to make it work) I think if the phone have kernel 2.6.35+ and android 2.3.4+ it will support ADK too, but I can't find a 2.6.35+ kernel for my Milestone.

Answer 2

When I was digging around in the CyanogenMod 7.1 kernel sources for my Galaxy S2 I found that the USB accessory driver missing from kernel 2.6.35.7 (I think the kernel .config flag is CONFIG_USB_ANDROID_ACCESSORY).

From what I've found by a lot of searching and forum digging was that the accessory driver was implemented in Honeycomb (3.x) but backported to Gingerbread (2.3), and should be available from kernel 2.6.35.15. I made a few unsuccessful attempts to compile my own kernel, with the plan to cherry pick the driver but for some reason I was not able to make the phone boot with my custom kernel.

I am now running an early experimental CyanogenMod 9 ICS (4.0.3) build on my SGS2 and it is possible to have the phone talk with my Arduino board. I made the phone able to toggle an LED on the board so I guess it is time to start working on my plans for world domination.