DOKK / manpages / debian 12 / libnvme-dev / nvme_id_ctrl_cntrltype.2.en
libnvme(2) API Manual libnvme(2)

enum nvme_id_ctrl_cntrltype - Controller types

enum nvme_id_ctrl_cntrltype {
NVME_CTRL_CNTRLTYPE_IO ,
NVME_CTRL_CNTRLTYPE_DISCOVERY ,
NVME_CTRL_CNTRLTYPE_ADMIN

};

NVM I/O controller
Discovery controller
Admin controller
enum nvme_id_ctrl_cntrltype January 2023