I was trying to add a few drivers (ftdi_sio and dependencies) as kernel modules by defining them in the defconfig file under the packages/linux/em-x270-2.6.23 directory. (e.g. adding lines like CONFIG_USB_SERIAL_FTD_SIO=m).
I see that when I used bitbake to rebuild the kernel, the defconfig file is copied in as the .config file for the kernel, but then a 'make oldconfig' is done and a bunch of the modules that I added were left out. Just as a sanity check, I manually edited the kernel makefiles to see if the drivers would build. I did get the modules built this way and was able to load them on my device. It would be much preferred if I could customize the kernel using the intended method in OpenEmbedded. I didn't find anything about this on the wiki, so I'd be glad to add it once I figure out the process. Did I take the wrong approach by modifying the kernel package's defconfig file? If not, does anybody have suggestions as to where I can look to investigate this further? [Slightly off-topic: I wanted to find out exactly what 'make oldconfig' did to see why it could be removing those modules from the .config file but was unable to find anything on the web or by sifting through the kernel's Makefiles. Does anybody happen to have more information on this? ] Thanks, Tim
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