HID: only dump report traffic with debug level 2

Currently using debug=1 with hid module prints out all sent and received
reports to the kernel log, while in many cases we only want to see the
report descriptors and hid-input mappings that are printed when a device
is probed.

Add new level debug=2, and only dump the report traffic with that level.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index f0b00ec..538bf28 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -44,8 +44,8 @@
 
 #ifdef CONFIG_HID_DEBUG
 int hid_debug = 0;
-module_param_named(debug, hid_debug, bool, 0600);
-MODULE_PARM_DESC(debug, "Turn HID debugging mode on and off");
+module_param_named(debug, hid_debug, int, 0600);
+MODULE_PARM_DESC(debug, "HID debugging (0=off, 1=probing info, 2=continuous data dumping)");
 EXPORT_SYMBOL_GPL(hid_debug);
 #endif