Re: tty layer and lbolt sleeps

2003-10-02 Thread Mike Durian
On Tuesday 16 September 2003 04:47 pm, Mike Durian wrote: > I'm trying to implement a serial protocol that is timing sensitive. > I'm noticing things like drains and reads and blocking until the > next kernel tick. I believe this is due to the lbolt sleeps > in the tty.c code. Following up on my

Re: tty layer and lbolt sleeps

2003-09-17 Thread Mike Durian
On Wednesday 17 September 2003 12:55 am, Terry Lambert wrote: > > You need your process to become a process group leader, and then > you need the serial port you are interested in to become the > controlling tty for your process. I thought daemon(3) and TIOCSCTTY would do the trick, however after

Re: tty layer and lbolt sleeps

2003-09-16 Thread Terry Lambert
Mike Durian wrote: > I'm trying to implement a serial protocol that is timing sensitive. > I'm noticing things like drains and reads and blocking until the > next kernel tick. I believe this is due to the lbolt sleeps > in the tty.c code. > > It looks like I can avoid these sleeps if isbackground