从用户角度看,系统可以休眠sleep或者休眠(Hibernate),实际都是保存系统上下文,然后挂起(suspend)系统,之后那肯定就有唤醒(wakeup)。 suspend的详细过程较复杂涉及许多模块,我们就简单介绍下suspend相关的用户接口。 Linux Kernel支持的休眠方式,可以使用想下面命令查看: 1 cat /sys/power/state /sys/power/state文件用...
以其中的/sys/class/leds/sys_status_led目录为例,它下面又包含brightness、device、max_brightness、power、subsystem、trigger、uevent等文件。 其中brightness表示LED灯的亮度,trigger表示LED灯的触发方式,我们可以通过echo、cat等命令来修改或查看这些文件, 从而达到控制LED灯的目的。下面以实例进行讲...
04-15 21:21:46.811 I/KPI ( 1): Bootloader start count = 2297698471 04-15 21:21:46.811 I/KPI ( 1): Bootloader end count = 2662317706 04-15 21:21:46.811 I/KPI ( 1): Bootloader load kernel count = 1071625697 04-15 21:21:46.811 I/KPI ( 1): Kernel MPM timestamp = 2008046 ...
KERUI-Power Catwalk & Casing Running SystemTiempo de publicación:2018-06-08 14:26anteriorKERUI- I-RIG próximoKERUI-Sistema de manipulación de tuberías Compartir:KERUI Perfil del Grupo Cultura de KERUI Produtos Sostenible Contáctenos HR Noticias Equipos de energía de petróleo y gas...
[IEEE 2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings - Singapore (23-27 Jan. 2000)] 2000 IEEE Power Engineering Society Winter ... S Wu,Q Qian - Power Engineering Society Winter Meeting 被引量: 31发表: 2000年 [IEEE 2000 IEEE Power Engineering Society Winter Meeting...
[LCD_INFO] mdss_fb_set_backlight:first panel on do not read 0x0A 6,1936,70948881,-;name\x09\x09active_count\x09event_count\x09wakeup_count\x09expire_count\x09active_since\x09total_time\x09max_time\x09last_change\x09prevent_suspend_time 6,1937,70948904,-;Active resource: PowerManagerService...
tools/vfsstat tools/vfsstat.c: Count some VFS calls, with column output. Examples. tools/wakeuptime: Summarize sleep to wakeup time by waker kernel stack. Examples. tools/xfsdist: Summarize XFS operation latency distribution as a histogram. Examples. tools/xfsslower: Trace slow XFS operations....
} returnmax_timeout; } 在内核打印休眠时没释放锁的名称。 1.要想能够在休眠的时候唤醒,必须使用RTC_WAKEUP,并且赋予<uses-permission android:name="android.permission.WAKE_LOCK"> 系统唤醒的权限。 否则,即使使用了RTC_WAKEUP也唤醒不了设备。 顶
//aManager.setExact(POWER_OFF_WAKE_UP,c.getTimeInMillis(), pi); aManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP,c.getTimeInMillis(), pi); Toast.makeText(AlarmTest.this, "设置闹钟成功", Toast.LENGTH_SHORT).show(); Log.e("weiqifa", "set the clock success!"); ...
The following topics were dealt with: system synthesis; hardware/software codesign; retargetable code generation; embedded processors; behavioural synthesis; low power estimation techniques for system level synthesis; mixed hardware sofw... P Paulin,F Mavaddat - International Symposium on System Synthesis...