修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
..
..
@@ -39,7 +39,7 @@
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 instance_set() {
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         while :; do
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-                echo 1 > foo/events/sched/sched_switch
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+                echo 1 > foo/events/sched/sched_switch/enable
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         done 2> /dev/null
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 }
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