Debug Android vibration

Question

Guys my phone is vibration without any reason. So I want to determine the application which sends vibration command to vibrate. Does Android logging such events? Or can I write an application which will monitor Vibrator::vibrate(TIMEOUT) calls from another application?

Note: I have root access.

No, nothing. Notification bar is clear(except of standard icons like battery, GSM network status.) — Edward, Aug 04 '14 at 09:50
You may have [Phantom Vibration Syndrome](http://en.wikipedia.org/wiki/Phantom_vibration_syndrome). Consider supporting the [Health](http://area51.stackexchange.com/proposals/66048/health) site proposal. — Matt Gibson, Aug 04 '14 at 09:56
BTW, I've disabled WiFi on the phone, and there is not vibrations last 30 minutes. But still I want do debug to find the real problem. — Edward, Aug 04 '14 at 10:06
Wait until it starts vibrating again, then kill processes one by one. — Mike M., Aug 04 '14 at 10:20

score 0 · Accepted Answer · answered Aug 04 '14 at 10:49

If you look in the system log (logcat -b system) it will show you the core system service's logs. The VibrateService only makes a couple in the latest version of Android, which will tell you what vibration pattern is being started. Unfortunately, it won't show you what UID/PID is responsible for the request. Beyond that, you may be able to find some information from the kernel by digging around to figure out which device interface (e.g. /dev/gpio1) is the one used by the vibrator service. If that driver exposes some stats/debug on /proc or debugfs you might be able to figure out which process is responsible.

Thank you! I'll try. I found an issue: seems like when the device tries to connect to a known WiFi network but uses wrong password, phone starts vibrate to indicate the connection error. — Edward, Aug 04 '14 at 10:52

Debug Android vibration

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