On Sun, Mar 12, 2017 at 5:34 PM, <valdis.kletnieks@xxxxxx> wrote:
> On Sun, 12 Mar 2017 15:49:31 +0200, Alexander Kapshuk said:
>
>> Are these drivers, drivers/iio/dummy/{iio_dummy_evgen,iio_dummy}.ko,
>> something of your own making, as I'm not seeing them in the kernel
>> source tree?
>>
>> The 'modules_install' make target installs drivers that have been
>> compiled as modules as opposed to those compiled into the kernel, into
>> /lib/modules/`uname -r`. For your own modules added to the kernel
>> source tree, or built out-of-tree, that would involve putting
>> appropriate entries into Kconfig and/or Makefiles.
>>
>> Modeprobe expects your module to be found in /lib/modules/`uname -r`.
>> Otherwise, your module won't get loaded.
>
> One other thing to remember is that although 'make modules_install' will
> take all the .ko files from in-tree modules and put them in their proper
> place in /lib/modules/`uname-r` and then run 'depmod', many out-of-tree
> Makefiles manage to forget to do that last step.
>
> modprobe is a wrapper around insmod - and the file produced by 'depmod'
> are what the wrapper uses to find the module.
Thanks for elaborating on that.
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