I figured out my problems. It is a naming convention issue for the shared library.
In hardware/libhardware/hardware.c, I noticed the call hw_get_module looks for various sets of names for the hardware modules. If you follow the porting guide from here: http://source.android.com/porting/lights.html it says to name your library liblights.so. Well, that appears to be misleading information. I had to name my lights library "lights. ($ro.board.platform).so" - the hardware module id ends up being the first part (lights), and you can use one of 4 different system properties for the 2nd name (in my case I used the system prop ro.board.platform). The only other possibility is to name your lights library "lights.default.so" Another caveat is to place this shared library in /system/lib/hw and not in /system/lib. The hardware.c implementation is hard-coded to look there. Once I got the naming and location right, Android was finally able to latch into my backlight and control it. I still have some minor problems but they may be coding issues that I will iron out as I continue testing. Hope this helps anyone else with similar problems... -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
