HelenOS sources

abi/include/abi/ipc/event.h
kernel/generic/include/ipc/event.h
uspace/lib/c/include/ipc/event.h
uspace/lib/display/include/display/event.h
uspace/lib/display/include/types/display/event.h
uspace/lib/posix/include/libc/ipc/event.h
uspace/lib/ui/include/types/ui/event.h