HelenOS sources

VOL_PART_ADD      212 uspace/lib/device/src/vol.c 	retval = async_req_1_0(exch, VOL_PART_ADD, sid);
VOL_PART_ADD      574 uspace/srv/volsrv/volsrv.c 		case VOL_PART_ADD:
HelenOS homepage, sources at GitHub