I'm in a college project and I need to make some changes to the file include/ieee80211.h. But I do not find this file in Openwrt sources.
I would like to know what would be the way for me to make the change I need and thus recompile Openwrt/LEDE.
If you do a "plain vanilla" build for your target device, you should find the "original" sources in the build directory. You can create a patch against those.