HID: only dump report traffic with debug level 2 (377e10fb) · Commits · 戴 / test

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>

drivers/hid/hid-core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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

drivers/hid/hid-debug.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -498,7 +498,7 @@ void hid_dump_device(struct hid_device *device) {
		EXPORT_SYMBOL_GPL(hid_dump_device);

		void hid_dump_input(struct hid_usage *usage, __s32 value) {
		if (!hid_debug)
		if (hid_debug < 2)
		return;

		printk(KERN_DEBUG "hid-debug: input ");

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