Accessing the PWM pins on MediaTek-based devices
The mediatek Application processors, like MT6572, has some PWM channels (up to 4 in some versions). I believe they are used for light sensor, voice/sound etc.
I believe that, as such, there exist a dedicated hardware mechanism that generate these pulse width modulated signals. I know that we can do it in software, but to use software you need no interruption etc.
Now, to use these channels we need two things:
1) Software access: I believe there is no API that provide direct PWM channel access.
2) Physical access: not all phones will have these pins available. Perhaps one need to unmount the chip to physically access the pin.
Do anyone has any ideas/comments/suggestions in this regard?
I am basically an electrical engineer and do not have much Android knowledge.
Thanks in advance.