Linux Device Drivers Development

Building the module

Now, when you are done with your makefile, just change to your source directory and run the make command, or make modules:

    jma@jma:~/work/tutos/sources/helloworld$ make
    make -C /lib/modules/4.4.0-79-generic/build \
        M=/media/jma/DATA/work/tutos/sources/helloworld modules
    make[1]: Entering directory '/usr/src/linux-headers-4.4.0-79-generic'
      CC [M]  /media/jma/DATA/work/tutos/sources/helloworld/helloworld.o
      Building modules, stage 2.
      MODPOST 1 modules
      CC      /media/jma/DATA/work/tutos/sources/helloworld/helloworld.mod.o
      LD [M]  /media/jma/DATA/work/tutos/sources/helloworld/helloworld.ko
    make[1]: Leaving directory '/usr/src/linux-headers-4.4.0-79-generic'
    
    jma@jma:~/work/tutos/sources/helloworld$ ls
    helloworld.c helloworld.ko ...