libnvme(9) API Manual libnvme(9) NAME enum nvme_id_ctrl_cntrltype - Controller types SYNOPSIS enum nvme_id_ctrl_cntrltype { NVME_CTRL_CNTRLTYPE_IO , NVME_CTRL_CNTRLTYPE_DISCOVERY , NVME_CTRL_CNTRLTYPE_ADMIN }; Constants NVME_CTRL_CNTRLTYPE_IO NVM I/O controller NVME_CTRL_CNTRLTYPE_DISCOVERY Discovery controller NVME_CTRL_CNTRLTYPE_ADMIN Admin controller October 2026 enum nvme_id_ctrl_cntrltype libnvme(9)