summary refs log tree commit diff
path: root/Documentation/ia64
diff options
context:
space:
mode:
authorBjorn Helgaas <bjorn.helgaas@hp.com>2006-10-03 01:14:00 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:03:42 -0700
commit1ab54a936d75b1b100c998c8e2717fafd0b4c3b6 (patch)
tree8a13ad08b6205eabf20f4a6ddb9b29401c1df696 /Documentation/ia64
parenta51f4a81e737735668206ad1618ce4a84cf362e7 (diff)
downloadlinux-1ab54a936d75b1b100c998c8e2717fafd0b4c3b6.tar.gz
[PATCH] ia64: note requirement for 8250_pnp, now that 8250_acpi is gone
We removed 8250_acpi in 2.6.17.  If we don't have PNPACPI turned on, we
won't find any ACPI serial devices, so mention this requirement in the
troubleshooting part of the documentation.

CONFIG_PNPACPI is already turned on in all the relevant defconfigs.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/ia64')
-rw-r--r--Documentation/ia64/serial.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ia64/serial.txt b/Documentation/ia64/serial.txt
index f51eb4bc2ff1..040b9773209f 100644
--- a/Documentation/ia64/serial.txt
+++ b/Documentation/ia64/serial.txt
@@ -124,6 +124,13 @@ TROUBLESHOOTING SERIAL CONSOLE PROBLEMS
 
 	- Add entry to /etc/securetty for console tty.
 
+    No ACPI serial devices found in 2.6.17 or later:
+
+	- Turn on CONFIG_PNP and CONFIG_PNPACPI.  Prior to 2.6.17, ACPI
+	  serial devices were discovered by 8250_acpi.  In 2.6.17,
+	  8250_acpi was replaced by the combination of 8250_pnp and
+	  CONFIG_PNPACPI.
+
 
 
 [1] http://www.dig64.org/specifications/DIG64_PCDPv20.pdf