Hi, I don't know how to post this question in this url. http://www.spinics.net/lists/linux-usb/msg32494.html. so post a new one. I would like to back porting CDC NCM USB host driver to 2.6.22, but seems that some data structure are not the same as current kernel version. Is it possible ? any side effect ? Recall that the development and testing have been done on "older" kernels, which kernel have been test? Hope that is helpful for me to do the porting. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html