HelenOS sources

uspace/lib/ddev/include/ddev.h
uspace/lib/ddev/include/ipc/ddev.h
uspace/lib/ddev/include/types/ddev.h
uspace/srv/hid/display/ddev.h
uspace/srv/hid/display/types/display/ddev.h
uspace/srv/hid/output/port/ddev.h
HelenOS homepage, sources at GitHub