Hello Jean-Christophe, >> usb_[eo]hci => [eo]hci ? >> > Remy what do you prefer? I think this structure is a whole lot better then dumping everything in a flat directory tree. And I also prefer to follow the Linux kernel structure, thus without usb_ prefixes. e.g.: drivers/usb/host/ochi.c or drivers/usb/host/echi.c Kind Regards, Remy