libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_fdp\_ruha - Reclaim Unit Handle Attributes

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_fdp\_ruha {  
**NVME\_FDP\_RUHA\_HOST\_SHIFT** ,  
**NVME\_FDP\_RUHA\_HOST\_MASK** ,  
**NVME\_FDP\_RUHA\_CTRL\_SHIFT** ,  
**NVME\_FDP\_RUHA\_CTRL\_MASK**

};

# [Constants](#Constants)

[NVME\_FDP\_RUHA\_HOST\_SHIFT](#NVME_FDP_RUHA_HOST_SHIFT)

Host Specified Reclaim Unit Handle Shift

[NVME\_FDP\_RUHA\_HOST\_MASK](#NVME_FDP_RUHA_HOST_MASK)

Host Specified Reclaim Unit Handle Mask

[NVME\_FDP\_RUHA\_CTRL\_SHIFT](#NVME_FDP_RUHA_CTRL_SHIFT)

Controller Specified Reclaim Unit Handle Shift

[NVME\_FDP\_RUHA\_CTRL\_MASK](#NVME_FDP_RUHA_CTRL_MASK)

Controller Specified Reclaim Unit Handle Mask

enum nvme\_fdp\_ruha October 2026

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