TF300TG / Android 4.1.1 / Built 10.4.3.8-20121106 / Kernel 3.1.10. / with docking
Even when the tablet boots with connected cardreader, in the app "datamanager" or "linda" there is no usb visible.
If the cardreader is connected to the pc (windows xp), there is no driver needed, and the explorer shows the device as an "wechseldatenträger" - means alternate disk or removable, function is ok.
Connected the cardreader with the pc the blue LED is on,
connected with the tabled the LED is off.
Next I will try to connect an usb-stick, therefore I need an usb gender-changer.
Type of cardreader