我們可以先從kernel的log看喚醒源：
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000 utc 02:55:43
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000 02:56:00
exit comip suspend by modem 0x00000000|0x00000000|0x00010000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000 02:56:32
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000 02:57:36
exit comip suspend by gpio99 10:57:41
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000 02:57:41
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000 02:59:43
exit comip suspend by gpio99 11:01:33
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by modem 0x00000004|0x00000000|0x00000000|0x00000000
exit comip suspend by gpio99 11:04:40 按power鍵
像gpio99這種是ap側的喚醒，
既然ap側喚醒我們再去看對應的framework的log
10:57:41.018415 889 1086 v alarmmanager: sending alarm alarm ...
11:01:33.022557 889 1086 v alarmmanager: sending alarm alarm...
11:04:40.023738 889 1093 i windowmanager: powerkey down, interactive = false
...04-07 11:04:40.031768 889 1093 i powermanagerservice: waking up from sleep (uid 1000)...
04-07 11:04:40.033560 889 889 i windowmanager: started waking up...
另外11:04:40是power按鍵喚醒
而modem的喚醒，ap側這邊能分析什麼呢？因為modem一般是有網路資料過來，才把ap側喚醒，因此我們可以看tcp的資料報，對照時間來看這個喚醒的點，有哪些伺服器的資料報傳送過來。
我們可以使用wireshark這個軟體分析資料報。
步驟如下：
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