Re: [android-developers] Connecting a OTG enabled phone to a USB device that is not handled by the OS (i.e. not a keyboard, mouse or mass storage device) -

I am using a USB to Serial adapter on my Samsung Nexus phone (Jelly Bean) and it works fine. I use the "Slick USB 2 Serial Terminal" application and the device gets detected  and works. 

At the moment I write my own example to send and recive messages over RS232 but it's just at the beginning. Up to now the UsbManager detects one USB device if I connect the adapter.

Roy

2012/10/4 Eduardo Alperin <edralp@gmail.com>

I created a small USB device and expected the Android phone to provide some kind of feedback when the device is connected and there is no app that receives the intent that is created.

The following facts were noticed:

(b) Even if a new devices connection appears in the logs Android doesn't show notifications of the devices connected with the exception of mass storage and  HIV devices

(a) The USB host mode seems unstable. Using Android version - 4.0.3 On different phones (Samsung NOTE and  S2) - In the first the device is recognized ( based on logs) in in the other not.

Does anyone have related experience with this? Anyway to have a popup that calls for action to download an app?

Thanks!

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