line BRK detection on ttyS0

Mark Hounschell
2010-09-22T19:50:56Z

Does the kernel support sending a SIGINT from a line BRK on ttyS0 to a thread of a process
where the process has a controlling terminal that is NOT ttyS0 and the thread is using ttyS0
in a cfmakeraw mode? I see doc that implies that ttyS0 must be the controlling terminal but
can my thread have a controlling terminal while my main process has it's own? My thread
cannot use the \377 \0 \0 char sequence because it is receiving and transmitting 8-bit binary
data. Is there a way for the kernel to inform my thread, not my main process, of a line BRK?
Or a way for my thread to ask the kernel if a line BRK occurred on ttyS0?

Thanks and regards
Mark