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platform_hardware_libhardware/modules
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Rom Lemarchand 0287721d28 gralloc: delete unused mutex declaration 
Change-Id: Ibc7e70887b61f7dd885c86d412387636d3a6a867
2013-11-26 10:01:25 -08:00
..
audio Code changes for offload support in hardware libhardware 2013-07-18 09:23:27 -07:00
audio_remote_submix Merge "Fix file permissions" into klp-dev 2013-08-22 22:26:35 +00:00
camera modules: camera: Separate locking for static characteristics 2013-07-26 16:36:43 -07:00
consumerir consumer_ir: add array length to get carrier freq 2013-09-11 17:51:19 -07:00
gralloc gralloc: delete unused mutex declaration 2013-11-26 10:01:25 -08:00
hwcomposer Add multi-display and flip fence to HWC 2012-08-07 12:26:59 -07:00
local_time Modifications to audio_hal for Android@Home. 2012-02-10 08:58:32 -08:00
nfc Initial NFC HAL for NCI controllers. 2012-09-14 13:56:58 -07:00
nfc-nci NFC HAL: Use a separate callback for data. 2012-09-30 11:08:49 -07:00
power remove triggering suspend from power hal 2012-05-03 19:01:02 -07:00
usbaudio audio: new audio devices enums 2012-09-07 10:32:57 -07:00
Android.mk modules: add demo consumer IR HAL 2013-09-09 23:55:26 -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/.