Raspberry CM doesnt react to USB Devices

[Negada]

Hello,

i built an OS with buildroot for the Raspberry CM. The system is very minimal just for testing purposes. The CM boots but doesnt react to USB devices (Keyboard and Mouse).

I tryed the same OS with a RASPBERRY PI 1 MODEL B+, with the same configs and the same Keyboard is working (even though the OS was made for the CM with the "make raspberrypi_defconfig" command). The usb interface of the Raspberry CM seems to be working fine, atleast it transmits power to the display if i connect the display power cable to it.

Does anyone has experiences with such issues or has any idea what could be wrong?

Thanks a lot, Negada.

[jamesh]

Are you using the standard CM development carrier board, or one of your own design?

[Negada]

I m using the standard CM development board.