Make uart(4) the default serial port driver on i386 and amd64.

The uart(4) driver has the advantage of supporting a wider variety of
hardware on a greater amount of platforms. This driver has already been
the standard on platforms such as ia64, powerpc and sparc64.

I've decided not to change anything on pc98. I'd rather let people from
the pc98 team look at this.

Approved by:	philip (mentor), marcel

1 files changed, 11 insertions, 0 deletions

diff --git a/UPDATING b/UPDATING
index 81ed365..5403ad9 100644
--- a/UPDATING
+++ b/UPDATING
@@ -22,6 +22,17 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW:
 	to maximize performance.  (To disable malloc debugging, run
 	ln -s aj /etc/malloc.conf.)
 
+20080713:
+	The sio(4) driver has been removed from the i386 and amd64
+	kernel configuration files. This means uart(4) is now the
+	default serial port driver on those platforms as well.
+	
+	To prevent collisions with the sio(4) driver, the uart(4) driver
+	uses different names for its device nodes. This means the
+	onboard serial port will now most likely be called "ttyu0"
+	instead of "ttyd0". You may need to reconfigure applications to
+	use the new device names.
+
 20080609:
 	The gpt(8) utility has been removed. Use gpart(8) to partition
 	disks instead.