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Steve Block 22d351317a Rename (IF_)LOGW(_IF) to (IF_)ALOGW(_IF) DO NOT MERGE 
See https://android-git.corp.google.com/g/157065

Bug: 5449033
Change-Id: I135fadaf10e95af1eb918889a22980c194c650ca
2012-01-05 23:27:52 +00:00
..
audio audio policy: register effect CPU on enable 2011-08-11 08:48:25 -07:00
gralloc Rename (IF_)LOGW(_IF) to (IF_)ALOGW(_IF) DO NOT MERGE 2012-01-05 23:27:52 +00:00
hwcomposer Rename (IF_)LOGD(_IF) to (IF_)ALOGD(_IF) DO NOT MERGE 2012-01-03 22:31:17 +00:00
nfc New NFC HAL. 2011-11-04 09:05:22 -07:00
Android.mk New NFC HAL. 2011-11-04 09:05:22 -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/.