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ECHOCTL290include/asm-alpha/termios.h#define ECHOCTL  0x00000040
ECHOCTL220include/asm-i386/termios.h#define ECHOCTL  0001000
ECHOCTL297include/asm-ppc/termios.h#define ECHOCTL  0x00000040
ECHOCTL304include/asm-sparc/termios.h#define ECHOCTL  0x00000200