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AM335x starter kit - android USB host problem

Paul Chou
Prodigy 60 points

Hi,

We are using the Am335x starter kit with Android 4.0.3 sdk code as an android platform to develop some USB app.

And trying to use Android USB host APIs to recognize the USB device whicth plug on starter kit USB1 host port.

The test app works on starter kit that always cannot recognize the plugged USB device. (standard mass storage or some USB 1.1/2.0 dev)

(From UART debug console, the kernel looks already recognize the usb device, but the app side gets nothing)

How ever the same app can work and recognize USB devices on other android phones like Sony Z1 and HTC.

Android 4.0.3 revison should already support USB Host APIs (>3.1 version).

Is that may cause by android or kernel version/configuration issue?

Or the starter kit USB hardware issue? (it looks add a usb hub on the path?)

Are there any comments could help to solve this problem?

Regards,

Paul