Hi, On Jan 9 2017 00:19, Mark Brand wrote:
I now enable my new module for compilation by make menuconfig in the source tree root. This adds the line CONFIG_SND_MQ8PORTSE=m to .config in that folder.
When working with out-of-tree sources, no need to care of .config and Kconfig on the tree, because built-tree already includes relevant information about it. In your case, '/usr/src/linux-headers-4.4.0-57-lowlatency/' is the built-tree, including enough stuffs for module building.
So what you need is to give CONFIG_SND_MQ8PORTSE=m to Make environment of the built-tree. Let's try:
$ CONFIG_SND_MQ8PORTSE=m make -C /lib/modules/$(uname -r)/build M=$(pwd) snd-mq8portse.ko
Kernel build system, called Kbuild, is enough complicated to me. So I cannot explain about the overall. Documentation in 'Documentation/kbuild/kbuild.txt'[0] and 'Documentation/kbuild/modules.txt'[1] will help you for more detail and good entry points into kernel world.
[0] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/kbuild/kbuild.txt [1] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/kbuild/modules.txt
Regards Takashi Sakamoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
