Hi,
I think you need to consider following points:
1. To call function of kext A from kext B, kext B
should be linked with kext A.
2. kext A should be loaded first before you make call
to function of kext A.
You can achieve it by doing this:
You can give dependancies like this in your Info.plist
file of KEXT B.
<key>OSBundleLibraries</key>
<dict>
<key>com.apple.iokit.IOPCIFamily</key>
<string>1.0.0</string>
</dict>
Here com.apple.iokit.IOPCIFamily is your KEXT A.
This will load the KEXT A first before loading kextB,
and also link kextB with A also.
You can see that from kextstat.
If your function is C function, you can extern it in
another kext B like any other variable.
Or your kext A should be family driver(KEXT) which has
abstract class, and in your kextB derive that class
can call the function.
Regards,
Parav Pandit
--- Anshul Makkar <email@hidden> wrote:
> Hello,
> I want to call functions of a kext from other kext .
> ie I want
> communication between kext. How to achieve it.
> Please let me know if any
> links or any other information is available to
> achieve the above task.
> Basically I will be registrying my kext as the
> graphics driver(kext ) so
> that all the calls that I will get to draw can be
> passed to original
> graphics kext.
> Thanks
>
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