libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_lm\_tact - Track Send - Track Memory Changes - Management Operation Specific field - Tracking Action (TACT)

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_lm\_tact {  
**NVME\_LM\_TACT\_STOP\_TRACKING** ,  
**NVME\_LM\_TACT\_START\_TRACKING**

};

# [Constants](#Constants)

[NVME\_LM\_TACT\_STOP\_TRACKING](#NVME_LM_TACT_STOP_TRACKING)

Stop tracking host memory changes

[NVME\_LM\_TACT\_START\_TRACKING](#NVME_LM_TACT_START_TRACKING)

Start tracking host memory changes; the data buffer contains a Track Memory Changes data structure, see *struct nvme\_lm\_track\_memory\_changes\_data*

enum nvme\_lm\_tact October 2026

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