_LINUX_IOW
#define LINUX_TCSETS _LINUX_IOW('t', 20, struct linux_termios)
#define LINUX_TCSETSW _LINUX_IOW('t', 21, struct linux_termios)
#define LINUX_TCSETSF _LINUX_IOW('t', 22, struct linux_termios)
#define LINUX_TCSETA _LINUX_IOW('t', 24, struct linux_termio)
#define LINUX_TCSETAW _LINUX_IOW('t', 25, struct linux_termio)
#define LINUX_TCSETAF _LINUX_IOW('t', 28, struct linux_termio)
#define LINUX_TIOCSPGRP _LINUX_IOW('t', 118, int)
#define LINUX_TIOCGWINSZ _LINUX_IOW('t', 104, struct linux_winsize)
#define LINUX_TIOCSWINSZ _LINUX_IOW('t', 103, struct linux_winsize)
#define LINUX_FIONBIO _LINUX_IOW('f', 126, int)
#define LINUX_FIOASYNC _LINUX_IOW('f', 125, int)
#define LINUX_TIOCSPTLCK _LINUX_IOW('T',0x31, int)
#define LINUX_TIOCSPTLCK _LINUX_IOW('T', 49, int)
#define LINUX_TIOCSPTLCK _LINUX_IOW('T', 49, int)
#define LINUX_TIOCSPGRP _LINUX_IOW('t', 118, int)
#define LINUX_TIOCSWINSZ _LINUX_IOW('t', 103, struct linux_winsize)
#define LINUX_TCSETS _LINUX_IOW('t', 20, struct linux_termios)
#define LINUX_TCSETSW _LINUX_IOW('t', 21, struct linux_termios)
#define LINUX_TCSETSF _LINUX_IOW('t', 22, struct linux_termios)
#define LINUX_TCSETA _LINUX_IOW('t', 24, struct linux_termio)
#define LINUX_TCSETAW _LINUX_IOW('t', 25, struct linux_termio)
#define LINUX_TCSETAF _LINUX_IOW('t', 28, struct linux_termio)
#define LINUX_TIOCSPGRP _LINUX_IOW('t', 118, int)
#define LINUX_TIOCSWINSZ _LINUX_IOW('t', 103, struct linux_winsize)
#define LINUX_FIONBIO _LINUX_IOW('f', 126, int)
#define LINUX_FIOASYNC _LINUX_IOW('f', 125, int)
#define LINUX_FDSETPRM _LINUX_IOW(2, 0x42, struct linux_floppy_struct)
#define LINUX_FDDEFPRM _LINUX_IOW(2, 0x43, struct linux_floppy_struct)
#define LINUX_FDFMTTRK _LINUX_IOW(2, 0x48, struct linux_format_descr)
_LINUX_IOW(2, 0x4c, struct linux_floppy_max_errors)
_LINUX_IOW(2, 0x90, struct linux_floppy_drive_params)
#define LINUX_MEGARAID_GET_AEN _LINUX_IOW('M', 3, struct mfi_ioc_aen)
#define LINUX_MTIOCTOP _LINUX_IOW('m', 1, struct linux_mtop)
#define LINUX_TFD_IOC_SET_TICKS _LINUX_IOW('T', 0, uint64_t)