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platform_hardware_libhardware/modules
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Ying Wang 23853ead7d Cleanup Obsolete LOCAL_PRELINK_MODULE. 
Bug: 18675947
Change-Id: I62157cd4bfab0edb445dd6543eb47a981e642848
2014-12-16 12:33:37 -08:00
..
audio audio HAL: add parameters to open stream 2014-07-28 11:38:40 -07:00
audio_remote_submix Fix remote submix crash on null sink 2014-10-15 15:16:10 -07:00
camera Fix C++11 build. 2014-11-27 21:39:46 -08:00
consumerir Fix warnings 2014-07-15 11:17:19 -07:00
fingerprint Hardware: Fingerprint: Fix the remove() argument, typos. 2014-04-23 10:05:57 -07:00
gralloc Remove ARCH_X86. 2014-12-04 16:20:52 -08:00
hwcomposer hardware/libhardware: convert LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH 2014-01-24 21:00:32 -08:00
local_time hardware/libhardware: convert LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH 2014-01-24 21:00:32 -08:00
nfc hardware/libhardware: convert LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH 2014-01-24 21:00:32 -08:00
nfc-nci hardware/libhardware: convert LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH 2014-01-24 21:00:32 -08:00
power hardware/libhardware: convert LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH 2014-01-24 21:00:32 -08:00
sensors Cleanup Obsolete LOCAL_PRELINK_MODULE. 2014-12-16 12:33:37 -08:00
soundtrigger sound_trigger HAL update 2014-07-31 11:16:16 -07:00
tv_input tv_input: add buffer producer profile 2014-04-09 21:30:04 +09:00
usbaudio usb audio: implement microphone mute. 2014-09-14 12:32:28 -07:00
vibrator hardware/libhardware: convert LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH 2014-01-24 21:00:32 -08:00
Android.mk Delete mcu HAL. 2014-07-26 14:58:23 -07:00
README.android auto import from //depot/cupcake/@135843 2009-03-03 19:32:14 -08:00

README.android 

Default (and possibly architecture dependents) HAL modules go here. 


libhardware.so eventually should contain *just* the HAL hub
(hardware.c), everything in it should be rewritten as modules.

Modules are .so in /system/libs/hw/ and have a well defined naming
convention:

    /system/libs/hw/<*_HARDWARE_MODULE_ID>.<ro.product.board>.so
    /system/libs/hw/<*_HARDWARE_MODULE_ID>.<ro.board.platform>.so
    /system/libs/hw/<*_HARDWARE_MODULE_ID>.<ro.arch>.so
    /system/libs/hw/<*_HARDWARE_MODULE_ID>.default.so

They also have a well defined interface which lives in include/hardware/.

A module can have several variants: "default", "arch" and "board", and they're
loaded in the "board", "arch" and "default" order.
The source code for the "board" variant, usually lives under partners/...

The source code for "default" and "arch" would usually
live under hardware/modules/.