IXON 306 bsp/drv/dev/base/tty.c if (iflag & IXON) { IXON 289 include/sys/termios.h #define TTYDEF_IFLAG (tcflag_t)(BRKINT | ICRNL | IXON | IXANY) IXON 44 usr/lib/libc/termios/cfmakeraw.c t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);