bill@ibmpcug.co.uk (bill birch) (11/15/89)
In article <21267@adm.BRL.MIL> charles@sifvx6.sinet.slb.com writes: > I have a problem on a SUN3/60 OS3.5 serial link from /dev/ttya to a plotter > which uses XON/XOFF for flow control. If someone cycles the plotter power in > mid-plot (eg to unblock the paper feed), the serial line hangs because the SUN > is waiting for XON (^Q) and the plotter is not clever enough to send XON when I have had similar problems in the past, but with the Baud rate. The trick is to sleep a process on the device thusly: sleep 1000000 >/dev/tyya & What happens is that when the last process that was using the device Hope this helps.