[S390] cio: Dump ccw device information in case of timeout.

[pandora-kernel.git] / Documentation / s390 / CommonIO

diff --git a/Documentation/s390/CommonIO b/Documentation/s390/CommonIO
index 86320aa..8fbc0a8 100644 (file)
--- a/Documentation/s390/CommonIO
+++ b/Documentation/s390/CommonIO
@@ -4,6 +4,11 @@ S/390 common I/O-Layer - command line parameters, procfs and debugfs entries
 Command line parameters
 -----------------------
 
+* ccw_timeout_log
+
+  Enable logging of debug information in case of ccw device timeouts.
+
+
 * cio_msg = yes | no
   
   Determines whether information on found devices and sensed device