From abcb8499acaef3fa9d650bea13272b01e90ffa7e Mon Sep 17 00:00:00 2001 From: Ruchi Kandoi Date: Wed, 19 Feb 2014 15:30:47 -0800 Subject: Power: add an API to log wakeup reasons Add API log_wakeup_reason() and expose it to userspace via sysfs path /sys/kernel/wakeup_reasons/last_resume_reason Change-Id: I81addaf420f1338255c5d0638b0d244a99d777d1 Signed-off-by: Ruchi Kandoi --- include/linux/wakeup_reason.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 include/linux/wakeup_reason.h (limited to 'include/linux') diff --git a/include/linux/wakeup_reason.h b/include/linux/wakeup_reason.h new file mode 100644 index 000000000000..7ce50f0debc4 --- /dev/null +++ b/include/linux/wakeup_reason.h @@ -0,0 +1,23 @@ +/* + * include/linux/wakeup_reason.h + * + * Logs the reason which caused the kernel to resume + * from the suspend mode. + * + * Copyright (C) 2014 Google, Inc. + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _LINUX_WAKEUP_REASON_H +#define _LINUX_WAKEUP_REASON_H + +void log_wakeup_reason(int irq); + +#endif /* _LINUX_WAKEUP_REASON_H */ -- cgit v1.2.3