platform_hardware_libhardware/modules/README.android
Po-Chien Hsueh c535b2fded Move default HAL libraries to vendor
Libraries under /hardware/libhardware/modules should go to /vendor/.

These are conventionl HALs for default implementations, most of them
are not used.

Camera and thermal are already moved in other CLs.

Bug: 35907904
Test: Compiled and checked install path. Verified on Sailfish with
$ lsof | grep default.

Change-Id: Ibde574001c01cbfea014a20a0fbbb3265e6cdc8a
2017-03-07 11:28:32 +08:00

23 lines
878 B
Text

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 /vendor/lib/hw/ and have a well defined naming
convention:
/vendor/lib/hw/<*_HARDWARE_MODULE_ID>.<ro.product.board>.so
/vendor/lib/hw/<*_HARDWARE_MODULE_ID>.<ro.board.platform>.so
/vendor/lib/hw/<*_HARDWARE_MODULE_ID>.<ro.arch>.so
/vendor/lib/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/.