[android-developers] Re: Porting of Android Open Accessory

Did you ever get this working?  I am trying to accomplish something similar.

On Monday, December 12, 2011 4:15:36 AM UTC-5, Bhargav wrote:

Hi All

This is Vinod from India, We are trying to port the Accessory protocol
from the Arduino ADK to a Freescale iMX35 board, We are using beagle
board as Android powered device and the baegle board has been ported
with Android 2.3.4 that supports accessory mode(We are using the pre-
built android image from TI for Beagle board).

We am using libusb-1.0 for implementing USB driver to communicate with
phone on the accessory.

When the beagle board(Android powered device) is connected to the
Accessory(PC/iMx35) the accessory will read the VID and PID.

When the accessory is trying to switch the android powered device(In
this case beagle board) to accessory mode by getting protocol by
sending vendor specific command and the request type = 51, the
response from the android device is that command is not supported by
the Android powered device(getting -9 as response to the
libusb_control_transfer()).

Should we enable some service in the Android 2.3.4 to support
accessory? I am not able to proceed furhter any help is highly
appreciated.

Many thanks and Best regards,
Vinod Bhargav B S

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