libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_id\_ctrl\_cntrltype - Controller types

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_id\_ctrl\_cntrltype {  
**NVME\_CTRL\_CNTRLTYPE\_IO** ,  
**NVME\_CTRL\_CNTRLTYPE\_DISCOVERY** ,  
**NVME\_CTRL\_CNTRLTYPE\_ADMIN**

};

# [Constants](#Constants)

[NVME\_CTRL\_CNTRLTYPE\_IO](#NVME_CTRL_CNTRLTYPE_IO)

NVM I/O controller

[NVME\_CTRL\_CNTRLTYPE\_DISCOVERY](#NVME_CTRL_CNTRLTYPE_DISCOVERY)

Discovery controller

[NVME\_CTRL\_CNTRLTYPE\_ADMIN](#NVME_CTRL_CNTRLTYPE_ADMIN)

Admin controller

enum nvme\_id\_ctrl\_cntrltype October 2026

---

Document: nvme_id_ctrl_cntrltype-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli