Hi! Sorry, I posted before but forgot the subject. I am running the test application "ffs-test.c" in user space and I want to write the descriptors to ep0. However, it seems that I can only write interface descriptors and enpoint descriptors. What about device and configdescriptors? When I put those in the "descriptor" struct I get an EINVAL (22, invalid parameter) error: "ffs-test: info: ep0: writing descriptors" "ffs-test: crit: ep0: write: descriptors: (-22) Invalid argument" -- 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