>Number:         2238
>Category:       kern
>Synopsis:       com ports do not get their initial speed set.
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 18 07:35:01 1996
>Last-Modified:
>Originator:     Lennart Augustsson
>Organization:
Chalmers
>Release:        960316
>Environment:
System: NetBSD calvin.cs.chalmers.se 1.1B NetBSD 1.1B (CALVIN) #3: Mon Mar 18 12:22:18 MET 1996 augustss@calvin.cs.chalmers.se:/usr/src/sys/arch/i386/compile/CALVIN i386


>Description:
	After the patch that only changes the speed of the com port
	when the FIFO is drained the initial speed no longer gets set
	at all.  The reason is that there is a test if the speed you
	are trying to set is equal to the current one (com.c, line 865).
	This works except for the initialization of the port where
	comparam is called from line 516.  The arguments ensure that
	the comparison is never going to come out unequal, and thus the
	start speed is not set.
	This is bad news if you then try to use the port at this speed
	since any attempt to change to the same value it will result
	in nothing.
>How-To-Repeat:
	Try using a com port at the default speed after reboot.
>Fix:
	The easiest fix is to use the #if that is already there,
	but it's not so elegant.

#if 0
        if (tp->t_ispeed != t->c_ispeed) { 
#else
        if (1) {
#endif

>Audit-Trail:
>Unformatted: