libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_lockdown\_csel - Lockdown Command Dword 10 - Controller Select (CSEL)

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_lockdown\_csel {  
**NVME\_LOCKDOWN\_CSEL\_NVM\_SUBSYSTEM** ,  
**NVME\_LOCKDOWN\_CSEL\_SPECIFIC\_CTRL** ,  
**NVME\_LOCKDOWN\_CSEL\_SECONDARY\_CTRLS** ,  
**NVME\_LOCKDOWN\_CSEL\_VENDOR\_SPECIFIC**

};

# [Constants](#Constants)

[NVME\_LOCKDOWN\_CSEL\_NVM\_SUBSYSTEM](#NVME_LOCKDOWN_CSEL_NVM_SUBSYSTEM)

NVM Subsystem: this command affects all controllers in the NVM subsystem.

[NVME\_LOCKDOWN\_CSEL\_SPECIFIC\_CTRL](#NVME_LOCKDOWN_CSEL_SPECIFIC_CTRL)

Specific Controller: this command affects the controller specified in the Controller Select Specific (CSS) field of Command Dword 14.

[NVME\_LOCKDOWN\_CSEL\_SECONDARY\_CTRLS](#NVME_LOCKDOWN_CSEL_SECONDARY_CTRLS)

Secondary Controllers for a Specific Primary Controller: this command affects all secondary controllers associated with the primary controller specified in the CSS field of Command Dword 14.

[NVME\_LOCKDOWN\_CSEL\_VENDOR\_SPECIFIC](#NVME_LOCKDOWN_CSEL_VENDOR_SPECIFIC)

Vendor Specific

enum nvme\_lockdown\_csel October 2026

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