Hello mtk http://man7.org/linux/man-pages/man2/ioctl.2.html In ERRORS section "EINVAL Request or argp is not valid." I think "R" of Request should be in lower case as it is a param. Does that sound right? Best regards, Jon -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
