Module Name:	syssrc
Committed By:	wdk
Date:		Tue Aug 29 11:25:11 UTC 2000

Modified Files:
	syssrc/sys/arch/mipsco/obio: zs.c

Log Message:
Engage the clutch before changing gears.

If the machine uses a Z85230 ESCC device with deep buffers, we observe
output glitches when printing the zstty{0,1} probe lines when the device
is reset & reprogrammed during startup.

There is no easy 'hook' in the MI Z8530 driver, so we wait for output
buffer to drain before changing the baud rate generator prescaler value.


To generate a diff of this commit:
cvs rdiff -r1.3 -r1.4 syssrc/sys/arch/mipsco/obio/zs.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.