Hi all.

I'm following a guide at http://frealek.dotnode.com/blog/view/177

I get stuck at the part where i'm supposed to 'make menuconfig' and modularize crc32 functions under the "library routines".

The menu seems disabled for this option! Pressing M on the other options adds a M symbol next to the function name. But pressing M next to crc32 functions does nothing at all.

Next to crc32 is displayed 3 hypens (---) and there is no way to change this. I notices that in other menus the options with 3 hypens also can't be changed. I can change the option of any funtion with an 'M' or a '*' next to it to the other option.

Does anyone know what the cause of this could be?

Any help would be appreciated.

Avatar

Doesn't the three dashes mean it's enabled by default? I get the three dashes too, and if i look at the .config with gedit it says

CONFIG_CRC32=y

Yupp, it does.

- Peder

Thanks for your replies

Assuming that crc32 is enabled, why would
not return any output?

Surely the file should be there if it is enabled.

Or does that mean the crc32 functions is built into the kernel and therefore it does not need to be enabled as a module (and the file does not need to be present).

Thanks again.
Avatar

It's built into the kernel.

- Peder