Hello, I can generate a "serial line break" using TIOCSBRK/TIOCCBRK or using the posix all "tcsendbreak". I have "serial.c" and these IOCTLs result in "break_ctl" being called. But I am not able to detect the line break interrupt on "Line Status Register" kernel I am using is linux-2.4.22 Warm regards Raghu ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/