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	Enabling tracing via
 echo 1 > /sys/kernel/debug/tracing/events/cfg802154/enable
enables event tracing like
 iwpan dev wpan0 set pan_id 0xbeef
 cat /sys/kernel/debug/tracing/trace
 # tracer: nop
 #
 # entries-in-buffer/entries-written: 2/2   #P:1
 #
 #                              _-----=> irqs-off
 #                             / _----=> need-resched
 #                            | / _---=> hardirq/softirq
 #                            || / _--=> preempt-depth
 #                            ||| /     delay
 #           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
 #              | |       |   ||||       |         |
            iwpan-2663  [000] ....   170.369142: 802154_rdev_set_pan_id: phy0, wpan_dev(1), pan id: 0xbeef
            iwpan-2663  [000] ....   170.369177: 802154_rdev_return_int: phy0, returned: 0
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
		
	
			
		
			
				
	
	
		
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			7 lines
		
	
	
	
		
			102 B
		
	
	
	
		
			C
		
	
	
	
	
	
#include <linux/module.h>
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#ifndef __CHECKER__
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#define CREATE_TRACE_POINTS
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#include "trace.h"
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#endif
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