>Number:         1661
>Category:       kern
>Synopsis:       kernel config should be able to specify 8 bit console
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 20 14:35:01 1995
>Last-Modified:
>Originator:     David Brownlee
>Organization:
Monochrome
>Release:        Sat Sep 30 1995
>Environment:
sparc, 1.0A, current
System: NetBSD gluon.mono.org 1.0A NetBSD 1.0A (_SUN4C_) #1: monoadm@gluon.mono.org:/mono/netbsd/src/sys/arch/sparc/compile/_SUN4C_ sparc

>Description:
	Currently the only way to ensure an 8 bit serial console is to
	patch /sys/sys/ttydefaults.h with the following.
	
--- sys/sys/ttydefaults.h.orig	Wed Jun 29 11:33:17 1994
+++ sys/sys/ttydefaults.h	Wed Sep 20 13:29:08 1995
@@ -52,7 +52,7 @@
 #define	TTYDEF_IFLAG	(BRKINT | ISTRIP | ICRNL | IMAXBEL | IXON | IXANY)
 #define TTYDEF_OFLAG	(OPOST | ONLCR | OXTABS)
 #define TTYDEF_LFLAG	(ECHO | ICANON | ISIG | IEXTEN | ECHOE|ECHOKE|ECHOCTL)
-#define TTYDEF_CFLAG	(CREAD | CS7 | PARENB | HUPCL)
+#define TTYDEF_CFLAG	(CREAD | CS8 | HUPCL)
 #define TTYDEF_SPEED	(B9600)
 
>How-To-Repeat:
	Run netbsd on a terminal which needs 8 bits & rejects characters with
	parity, and watch it get blown away between starting init and going
	multi user (assuming you have set /etc/ttys correctly :)
>Fix:
	One of (In order of reducing niceness :)

	      * Make the default console 8 bit (who needs a serial console
		with 7 bits nowdays anyway!?!)

	      * Have an option for 'SERIAL_CONSOLE_8BIT' in the config file
		(toggles the value of TTYDEF_CFLAG in /sys/sys/ttydefaults.h.

	      * Make the kernal (or init) read /etc/ttys and parse the
		'console' line (Uck - Not _more_ in the kernel please :)
>Audit-Trail:
>Unformatted: