[android-porting] Hidden system.img dependency from AndroidKernel.mk?

2015-04-03 Thread Ash Charles
Hi, The msm kernel provides a clever little makefile [1] to build the kernel along with the rest of Android as outlined here [2]. As this installs kernel modules into TARGET_OUT as part of the build procedure, don’t we need to force system.img to be updated to pick up the latest installed

[android-porting] audio output latency measurement suggestion

2015-04-03 Thread George Tsiros
use the accelerometer. as far as i can tell, the accelerometer sensor data is not buffered thus latency is minimal rest device on something soft (i used cigarette rolling filters) set accelerometer to maximum refresh rate, on my xperia z ultra it is 200 Hz output pulses (say 1% duty cycle at 1