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From: Rafael J. Wysocki on 22 Jul 2010 18:00
On Thursday, July 22, 2010, Lin Ming wrote:
> power tracepoint events are exported like below,
>
> /sys/power/events/
> |-- power_end
> | |-- config
> | `-- type
> |-- power_frequency
> | |-- config
> | `-- type
> `-- power_start
> |-- config
> `-- type

Any details?

> ---
> kernel/power/main.c | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/kernel/power/main.c b/kernel/power/main.c
> index b58800b..6749374 100644
> --- a/kernel/power/main.c
> +++ b/kernel/power/main.c
> @@ -12,6 +12,7 @@
> #include <linux/string.h>
> #include <linux/resume-trace.h>
> #include <linux/workqueue.h>
> +#include <linux/perf_event.h>
>
> #include "power.h"
>
> @@ -269,6 +270,9 @@ static int __init pm_init(void)
> power_kobj = kobject_create_and_add("power", NULL);
> if (!power_kobj)
> return -ENOMEM;
> +
> + perf_sys_add_tp(power_kobj, "power");
> +

Why isn't it done in drivers/base/power/sysfs.c ?

> return sysfs_create_group(power_kobj, &attr_group);
> }

Rafael
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