Hi, As you asked, let me explain my use case: Start the device ---> Launch the sensor app(don't close it) --->let the device go in suspend mode(early and complete suspend both; note that the app has not been closed)
"The application should disable sensors event listener, Sensor Manager will call your data_close() and everything will be ok." My point is that i'm not closing my application at all. Now, for three exit points in Android : onDestroy(), onPause(),onStop() , it is quite possible that the app has not implemented all the 3 exit points. As per theory, whenever the app is not visible, it should call onStop().What I'm not sure is , when the device goes in early suspend , does the onStop() is called for the application automatically? If it is so, fault may be on the sensor apps I'm using. (as they might not have implemented OnStop() ). -regards Dharam On Wed, Dec 22, 2010 at 7:05 AM, ip332 <iprile...@gmail.com> wrote: > Sorry, it is not clear what what does your driver do in the first case > (error). > > BTW: why do you need the early suspend at all? Android is not a pure > Linux so you better start from the application level. > The application should disable sensors event listener, Sensor Manager > will call your data_close() and everything will be ok. > I spent quite a lot of time on sensor driver and don't remember any > problems with this approach. > > Regards > Igor > > On Dec 20, 9:42 pm, Dharam <dharam.kumar.gu...@gmail.com> wrote: > > Hi all, > > I'm trying to have my sensor hardware drivers to go in suspend and > > resume mode(basically, the suspend and resume functions of sensor > > driver) as the device goes in early suspend(and then complete suspend > > mode) and then wakes up. > > For my use case, if i keep a "sensor application" say a proximity > > sensor app running and tries to let the device go in suspend > > mode(early and complete suspend both) > > then I get an error saying : > > > > Restarting tasks ... done. > > suspend: exit suspend, ret = -16 (2000-01-01 03:36:58.558319086 UTC) > > PM: Syncing filesystems ... done. > > Freezing user space processes ... > > Freezing of user space aborted. > > > > and the device does not go in "complete suspend" mode. > > However, If i use the libraries of <linux/earlysuspend.h> in my driver > > code and register an instance of early_suspend and and map my suspend/ > > resume functions to the structure early_suspend 's suspend/resume > > functions and register it, the device (with a proximity sensor app > > running) goes in suspend and resume mode without any hassles. > > > > can anyone explain this behavior of sensor drivers? > > - > > Best Regards > > Dharam > > -- > unsubscribe: > android-kernel+unsubscr...@googlegroups.com<android-kernel%2bunsubscr...@googlegroups.com> > website: http://groups.google.com/group/android-kernel > -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
