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README.md

      1 # Android Kernel Config Fragments
      2 
      3 The files in these directories are meant to be used as a base for an Android
      4 kernel config. All devices must have the options in `android-base.cfg` configured
      5 as specified.  If an `android-base-ARCH.cfg` file exists for the architecture of
      6 your device, the options in that file must be configured as specified also.
      7 
      8 While not mandatory, the options in `android-recommended.cfg` enable advanced
      9 Android features.
     10 
     11 Assuming you already have a minimalist defconfig for your device, a possible
     12 way to enable these options would be to use the `merge_config.sh` script in the
     13 kernel tree. From the root of the kernel tree:
     14 
     15 ```sh
     16      ARCH=<arch> scripts/kconfig/merge_config.sh <...>/<device>_defconfig <...>/android-base.cfg <...>/android-base-<arch>.cfg <...>/android-recommended.cfg
     17 ```
     18 
     19 This will generate a `.config` that can then be used to save a new defconfig or
     20 compile a new kernel with Android features enabled.
     21 
     22 Because there is no tool to consistently generate these config fragments,
     23 lets keep them alphabetically sorted instead of random.
     24