Check if specific functionally is built into the kernel

[Vlad Dogaru]

On Sun, Feb 26, 2012 at 7:26 PM, Daniel Baluta <daniel.baluta at gmail.com> wrote:
> On Sun, Feb 26, 2012 at 7:08 PM, Arokux B. <arokux at gmail.com> wrote:
>> Dear all,
>>
>> I have the following problem. Some functionality can be either built
>> into the kernel or it can be build as a module. In the latter case the
>> application should load the module.
>>
>> Is there a general approach to test if specific functionality is built
>> statically or as a module?
>
> If available, you can check .config file.
> (e.g check if CONFIG_X_OPTION=Y or CONFIG_X_OPTION=m).

If you don't have your .config (distro prebuilt image), you can check
/proc/config.gz or /boot/ for a config which corresponds to your uname
-r.

Vlad