A printer attached to an ALM-1 port on a Sun 3/160 stopped
working when the OS was upgraded from 3.5 to 4.1.1. It appeared Unix
was having flow control problems.
SOLUTION: (note the patch is for 4.1 not 4.1.1)
Apply SunOS 4.1 patch, patch id 100137-01. Here is the first part
of the README.
Synopsis: ALM flow control patch
SunOS release: 4.1
BugId's fixed with this patch: 1044721
Architectures for which this patch is available: sun3
This patch corrects the behavior described in Sun Bug No. 1044721.
Systems running SunOS 4.1 with ALM (Systech MTI) boards can experience
flow control problems on these serial ports. The system will not
recognize an incoming XON character after receiving an XOFF character,
which causes the port to appear frozen. Typing ^S^Q will reenable
michael pearlman <firstname.lastname@example.org>
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:06:00 CDT