.TH "libnvme" 9 "enum nvme_lm_tact" "October 2026" "API Manual" LINUX .SH NAME enum nvme_lm_tact \- Track Send - Track Memory Changes - Management Operation Specific field - Tracking Action (TACT) .SH SYNOPSIS enum nvme_lm_tact { .br .BI " NVME_LM_TACT_STOP_TRACKING" , .br .br .BI " NVME_LM_TACT_START_TRACKING" }; .SH Constants .IP "NVME_LM_TACT_STOP_TRACKING" 12 Stop tracking host memory changes .IP "NVME_LM_TACT_START_TRACKING" 12 Start tracking host memory changes; the data buffer contains a Track Memory Changes data structure, see \fIstruct nvme_lm_track_memory_changes_data\fP