Driver Core verbose debug messages


Linux Kernel Configuration
└─>Device Drivers
└─>Generic Driver Options
└─>Driver Core verbose debug messages
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here if you want the Driver core to produce a bunch of
debug messages to the system log. Select this if you are having a
problem with the driver core and want to see more of what is
going on.

If you are unsure about this, say N here.