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/linux-6.6.21/tools/testing/selftests/ftrace/test.d/trigger/
Dtrigger-filter.tc14 echo 'traceoff if child_pid == 0' > events/sched/sched_process_fork/trigger
23 ! echo 'traceoff if a' > events/sched/sched_process_fork/trigger
24 ! echo 'traceoff if common_pid=0' > events/sched/sched_process_fork/trigger
25 ! echo 'traceoff if common_pid==b' > events/sched/sched_process_fork/trigger
26 echo 'traceoff if common_pid == 0' > events/sched/sched_process_fork/trigger
27 echo '!traceoff' > events/sched/sched_process_fork/trigger
28 ! echo 'traceoff if common_pid == child_pid' > events/sched/sched_process_fork/trigger
29 echo 'traceoff if common_pid <= 0' > events/sched/sched_process_fork/trigger
30 echo '!traceoff' > events/sched/sched_process_fork/trigger
31 echo 'traceoff if common_pid >= 0' > events/sched/sched_process_fork/trigger
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Dtrigger-eventonoff.tc12 FEATURE=`grep enable_event events/sched/sched_process_fork/trigger`
20 echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
30 echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
39 ! echo 'enable_event:nogroup:noevent' > events/sched/sched_process_fork/trigger
40 ! echo 'disable_event+1' > events/sched/sched_process_fork/trigger
41 echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
42 ! echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
43 ! echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
Dtrigger-hist-expressions.tc13 trigger="events/sched/sched_process_fork/trigger"
15 reset_trigger_file $trigger
19 echo "hist:keys=common_pid:x=$2" > $trigger
23 actual=`grep -o 'x=[[:digit:]]*' $trigger | awk -F= '{ print $2 }'`
29 reset_trigger_file $trigger
33 trigger="events/sched/sched_process_fork/trigger"
36 ftrace_errlog_check 'hist:sched:sched_process_fork' "$2" $trigger
Dtrigger-traceonoff.tc13 echo 'traceoff' > events/sched/sched_process_fork/trigger
23 echo 'traceon' > events/sched/sched_process_fork/trigger
32 ! echo 'traceoff:badparam' > events/sched/sched_process_fork/trigger
33 ! echo 'traceoff+0' > events/sched/sched_process_fork/trigger
34 echo 'traceon' > events/sched/sched_process_fork/trigger
35 ! echo 'traceon' > events/sched/sched_process_fork/trigger
36 ! echo 'traceoff' > events/sched/sched_process_fork/trigger
Dtrigger-stacktrace.tc11 FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`
20 echo 'stacktrace' > events/sched/sched_process_fork/trigger
29 ! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger
30 echo "stacktrace" > events/sched/sched_process_fork/trigger
31 ! echo "stacktrace" > events/sched/sched_process_fork/trigger
/linux-6.6.21/Documentation/driver-api/iio/
Dtriggers.rst5 * struct iio_trigger — industrial I/O trigger device
9 * :c:func:`iio_trigger_validate_own_device` — Check if a trigger and IIO
13 on some external event (trigger) as opposed to periodically polling for data.
14 An IIO trigger can be provided by a device driver that also has an IIO device
18 a specific file in sysfs). A trigger may initiate data capture for a number of
21 IIO trigger sysfs interface
26 * :file:`/sys/bus/iio/devices/trigger{Y}/*`, this file is created once an
27 IIO trigger is registered with the IIO core and corresponds to trigger
32 * :file:`name`, trigger name that can be later used for association with a
35 specify the frequency for trigger calls.
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/linux-6.6.21/tools/perf/util/
Dtrigger.h25 struct trigger { struct
40 static inline bool trigger_is_available(struct trigger *t) in trigger_is_available()
45 static inline bool trigger_is_error(struct trigger *t) in trigger_is_error()
50 static inline void trigger_on(struct trigger *t) in trigger_on()
56 static inline void trigger_ready(struct trigger *t) in trigger_ready()
63 static inline void trigger_hit(struct trigger *t) in trigger_hit()
71 static inline void trigger_off(struct trigger *t) in trigger_off()
78 static inline void trigger_error(struct trigger *t) in trigger_error()
83 static inline bool trigger_is_ready(struct trigger *t) in trigger_is_ready()
88 static inline bool trigger_is_hit(struct trigger *t) in trigger_is_hit()
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/linux-6.6.21/tools/tracing/rtla/src/
Dtrace.c214 if (free_event->trigger) in trace_events_free()
215 free(free_event->trigger); in trace_events_free()
265 int trace_event_add_trigger(struct trace_events *event, char *trigger) in trace_event_add_trigger() argument
267 if (event->trigger) in trace_event_add_trigger()
268 free(event->trigger); in trace_event_add_trigger()
270 event->trigger = strdup(trigger); in trace_event_add_trigger()
271 if (!event->trigger) in trace_event_add_trigger()
321 if (!tevent->trigger) in trace_event_save_hist()
325 retval = strncmp(tevent->trigger, "hist:", strlen("hist:")); in trace_event_save_hist()
361 char trigger[1024]; in trace_event_disable_trigger() local
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/linux-6.6.21/drivers/vfio/fsl-mc/
Dvfio_fsl_mc_intr.c57 eventfd_signal(mc_irq->trigger, 1); in vfio_fsl_mc_irq_handler()
65 struct eventfd_ctx *trigger; in vfio_set_trigger() local
70 if (irq->trigger) { in vfio_set_trigger()
73 eventfd_ctx_put(irq->trigger); in vfio_set_trigger()
74 irq->trigger = NULL; in vfio_set_trigger()
85 trigger = eventfd_ctx_fdget(fd); in vfio_set_trigger()
86 if (IS_ERR(trigger)) { in vfio_set_trigger()
88 return PTR_ERR(trigger); in vfio_set_trigger()
91 irq->trigger = trigger; in vfio_set_trigger()
97 eventfd_ctx_put(trigger); in vfio_set_trigger()
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/linux-6.6.21/Documentation/iio/
Diio_configfs.rst38 trigger types. A new trigger type is usually implemented as a separate
42 * drivers/iio/trigger/iio-trig-sample.c
43 * sample kernel module implementing a new trigger type
51 * This allocates and registers an IIO trigger plus other
52 * trigger type specific initialization.
76 Each trigger type has its own directory under /config/iio/triggers. Loading
77 iio-trig-sample module will create 'trig-sample' trigger type directory
80 We support the following interrupt sources (trigger types):
87 Loading iio-trig-hrtimer module will register hrtimer trigger types allowing
95 Each trigger can have one or more attributes specific to the trigger type.
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/linux-6.6.21/tools/testing/selftests/ftrace/test.d/trigger/inter-event/
Dtrigger-inter-event-combined-hist.tc20 echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
21 ….sched_waking).waking_latency($waking_lat,pid) if comm=="ping"' > events/sched/sched_wakeup/trigger
22 echo 'hist:keys=pid,lat:sort=pid,lat' > events/synthetic/waking_latency/trigger
25 echo 'hist:keys=pid:ts1=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger
26 …eup).wakeup_latency($wakeup_lat,next_pid) if next_comm=="ping"' > events/sched/sched_switch/trigger
29 …wakeup_latency).waking_plus_wakeup_latency($ww_lat,pid)' >> events/synthetic/wakeup_latency/trigger
30 echo 'hist:keys=pid,lat:sort=pid,lat' >> events/synthetic/waking_plus_wakeup_latency/trigger
/linux-6.6.21/drivers/vfio/pci/
Dvfio_pci_intrs.c26 struct eventfd_ctx *trigger; member
97 eventfd_signal(ctx->trigger, 1); in vfio_send_intx_eventfd()
268 struct eventfd_ctx *trigger; in vfio_intx_set_signal() local
276 if (ctx->trigger) { in vfio_intx_set_signal()
279 eventfd_ctx_put(ctx->trigger); in vfio_intx_set_signal()
280 ctx->trigger = NULL; in vfio_intx_set_signal()
291 trigger = eventfd_ctx_fdget(fd); in vfio_intx_set_signal()
292 if (IS_ERR(trigger)) { in vfio_intx_set_signal()
294 return PTR_ERR(trigger); in vfio_intx_set_signal()
297 ctx->trigger = trigger; in vfio_intx_set_signal()
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/linux-6.6.21/Documentation/ABI/testing/
Dsysfs-bus-iio-trigger-sysfs5 This file is provided by the iio-trig-sysfs stand-alone trigger
7 driven driver, associated with this trigger, to capture data
9 automated testing or in situations, where other trigger methods
11 X is the IIO index of the trigger.
18 trigger. In order to associate the trigger with an IIO device
20 /sys/bus/iio/devices/iio:deviceY/trigger/current_trigger.
27 driver and it is used to activate the creation of a new trigger.
30 trigger. If the trigger with the specified id is already present
38 created trigger from the list of available triggers. In order to
40 associated file, representing the id of the trigger that needs
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Dsysfs-bus-iio-timer-stm3210 used as trigger output (TRGO).
13 as trigger output.
15 The update event is selected as trigger output.
19 The trigger output send a positive pulse
22 OC1REF signal is used as trigger output.
24 OC2REF signal is used as trigger output.
26 OC3REF signal is used as trigger output.
28 OC4REF signal is used as trigger output.
33 OC5REF signal is used as trigger output.
35 OC6REF signal is used as trigger output.
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/linux-6.6.21/Documentation/leds/
Dledtrig-transient.rst5 The leds timer trigger does not currently have an interface to activate
10 should stay in off state. The on and off cycle repeats until the trigger
15 Without one shot timer interface, user space can still use timer trigger to
20 Transient trigger addresses the need for one shot timer activation. The
21 transient trigger can be enabled and disabled just like the other leds
25 triggers it supports and a default trigger. During registration, activation
26 routine for the default trigger gets called. During registration of an led
30 trigger will be called, and LED state is changed to LED_OFF.
34 suspend and resume actions and the currently enabled trigger. LED state
42 echo 0 > brightness, it will result in deactivating the current trigger.
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Dledtrig-oneshot.rst5 This is a LED trigger useful for signaling the user of an event where there are
7 trigger, the application needs only to signal the trigger when an event has
8 happened, then the trigger turns the LED on and then keeps it off for a
11 This trigger is meant to be usable both for sporadic and dense events. In the
12 first case, the trigger produces a clear single controlled blink for each
20 The trigger can be activated from user space on led class devices as shown
23 echo oneshot > trigger
26 Documentation/ABI/testing/sysfs-class-led-trigger-oneshot
30 echo oneshot > trigger # set trigger for this led
/linux-6.6.21/drivers/iio/trigger/
Diio-trig-loop.c87 trig_info->swt.trigger = iio_trigger_alloc(NULL, "%s", name); in iio_trig_loop_probe()
88 if (!trig_info->swt.trigger) { in iio_trig_loop_probe()
93 iio_trigger_set_drvdata(trig_info->swt.trigger, trig_info); in iio_trig_loop_probe()
94 trig_info->swt.trigger->ops = &iio_loop_trigger_ops; in iio_trig_loop_probe()
96 ret = iio_trigger_register(trig_info->swt.trigger); in iio_trig_loop_probe()
105 iio_trigger_free(trig_info->swt.trigger); in iio_trig_loop_probe()
116 trig_info = iio_trigger_get_drvdata(swt->trigger); in iio_trig_loop_remove()
118 iio_trigger_unregister(swt->trigger); in iio_trig_loop_remove()
119 iio_trigger_free(swt->trigger); in iio_trig_loop_remove()
Diio-trig-hrtimer.c105 iio_trigger_poll(info->swt.trigger); in iio_hrtimer_trig_handler()
138 trig_info->swt.trigger = iio_trigger_alloc(NULL, "%s", name); in iio_trig_hrtimer_probe()
139 if (!trig_info->swt.trigger) { in iio_trig_hrtimer_probe()
144 iio_trigger_set_drvdata(trig_info->swt.trigger, trig_info); in iio_trig_hrtimer_probe()
145 trig_info->swt.trigger->ops = &iio_hrtimer_trigger_ops; in iio_trig_hrtimer_probe()
146 trig_info->swt.trigger->dev.groups = iio_hrtimer_attr_groups; in iio_trig_hrtimer_probe()
154 ret = iio_trigger_register(trig_info->swt.trigger); in iio_trig_hrtimer_probe()
161 iio_trigger_free(trig_info->swt.trigger); in iio_trig_hrtimer_probe()
172 trig_info = iio_trigger_get_drvdata(swt->trigger); in iio_trig_hrtimer_remove()
174 iio_trigger_unregister(swt->trigger); in iio_trig_hrtimer_remove()
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DKconfig10 tristate "High resolution timer trigger"
13 Provides a frequency based IIO trigger using high resolution
20 tristate "Generic interrupt trigger"
23 trigger. This may be provided by a gpio driver for example.
33 This can be used as trigger source for STM32 internal ADC
37 module will be called stm32-lptimer-trigger.
46 module will be called stm32-timer-trigger.
49 tristate "A kthread based hammering loop trigger"
52 An experimental trigger, used to allow sensors to be sampled as fast
55 trigger consumers.
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/linux-6.6.21/Documentation/devicetree/bindings/power/reset/
Dltc2952-poweroff.txt3 This chip is used to externally trigger a system shut down. Once the trigger has
16 - trigger-gpios: phandle + gpio-specifier for the GPIO connected to the
17 chip's trigger line. If this property is not set, the
18 trigger function is ignored and the chip is kept alive
20 - trigger-delay-ms The number of milliseconds to wait after trigger line
29 trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
30 trigger-delay-ms = <2000>;
/linux-6.6.21/arch/arm/boot/dts/broadcom/
Dbcm47081-luxul-xwr-1200.dts39 linux,default-trigger = "default-on";
45 linux,default-trigger = "none";
51 linux,default-trigger = "none";
57 linux,default-trigger = "none";
63 linux,default-trigger = "none";
69 trigger-sources = <&ohci_port2>, <&ehci_port2>;
70 linux,default-trigger = "usbport";
76 linux,default-trigger = "timer";
82 linux,default-trigger = "none";
88 linux,default-trigger = "none";
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/linux-6.6.21/drivers/vfio/platform/
Dvfio_platform_irq.c158 eventfd_signal(irq_ctx->trigger, 1); in vfio_automasked_irq_handler()
167 eventfd_signal(irq_ctx->trigger, 1); in vfio_irq_handler()
176 struct eventfd_ctx *trigger; in vfio_set_trigger() local
179 if (irq->trigger) { in vfio_set_trigger()
183 eventfd_ctx_put(irq->trigger); in vfio_set_trigger()
184 irq->trigger = NULL; in vfio_set_trigger()
194 trigger = eventfd_ctx_fdget(fd); in vfio_set_trigger()
195 if (IS_ERR(trigger)) { in vfio_set_trigger()
197 return PTR_ERR(trigger); in vfio_set_trigger()
200 irq->trigger = trigger; in vfio_set_trigger()
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/linux-6.6.21/include/linux/
Dleds.h189 struct led_trigger *trigger; member
500 int led_trigger_register(struct led_trigger *trigger);
501 void led_trigger_unregister(struct led_trigger *trigger);
503 struct led_trigger *trigger);
506 struct led_trigger **trigger);
507 void led_trigger_unregister_simple(struct led_trigger *trigger);
508 void led_trigger_event(struct led_trigger *trigger, enum led_brightness event);
509 void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on,
511 void led_trigger_blink_oneshot(struct led_trigger *trigger,
516 int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
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/linux-6.6.21/drivers/leds/trigger/
Dledtrig-panic.c15 static struct led_trigger *trigger; variable
29 if (led_cdev->trigger) in led_trigger_set_panic()
37 led_cdev->trigger = trig; in led_trigger_set_panic()
61 led_trigger_event(trigger, state ? LED_FULL : LED_OFF); in led_panic_blink()
67 led_trigger_register_simple("panic", &trigger); in ledtrig_panic_init()
68 if (!trigger) in ledtrig_panic_init()
/linux-6.6.21/arch/ia64/kernel/
Diosapic.c145 unsigned char trigger : 1; /* trigger mode (see iosapic.h) */ member
217 unsigned long pol, trigger, dmode; in set_rte() local
232 trigger = iosapic_intr_info[irq].trigger; in set_rte()
242 (trigger << IOSAPIC_TRIGGER_SHIFT) | in set_rte()
483 static int iosapic_find_sharable_irq(unsigned long trigger, unsigned long pol) in iosapic_find_sharable_irq() argument
492 if (trigger == IOSAPIC_EDGE) in iosapic_find_sharable_irq()
497 if (info->trigger == trigger && info->polarity == pol && in iosapic_find_sharable_irq()
543 ia64_native_iosapic_get_irq_chip(unsigned long trigger) in ia64_native_iosapic_get_irq_chip() argument
545 if (trigger == IOSAPIC_EDGE) in ia64_native_iosapic_get_irq_chip()
553 unsigned long polarity, unsigned long trigger) in register_intr() argument
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