I have a USB OTG device which acts like a mouse, bought in china with not much more information about the used controller. When I connect it to my android there is a mouse cursor and the device has 5 hard buttons (left, right, up, down, enter). I want to programm the buttons for my app to performe specific tasks. So I need to read the input signals and overwrite them.
I found out the vendor (0x04D9) and product id (0x2519) and the controller name Lenovo Calliope USB Keyboard. But no idea about the used chip, it's covert.
How can I catch the signals?
It doesn't work with the methods onKeyDown or dispatchKeyEvent.
Side question, if I connect the device the first time the app crash but I can reopen it and it works fine... any idea?
Update: I bought the USB OTG device in china so I have not much information about the used controller. I found out that they use a 'Lenovo Calliope USB Keyboard' Controller with HID\VID_04D9&PID_2519&REV_0001.
Update 2: the code from Fatih Şennik works for other usb devices. So I have an hardware issue? But the controller does what he is supposed to do...
from How to catch signals from a unknown USB OTG device?
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