DOKK / manpages / debian 12 / libnvme-dev / nvme_id_ctrl_fuses.2.en
libnvme(2) API Manual libnvme(2)

enum nvme_id_ctrl_fuses - This field indicates the fused operations that the controller supports.

enum nvme_id_ctrl_fuses {
NVME_CTRL_FUSES_COMPARE_AND_WRITE

};

If set, then the controller supports the Compare and Write fused operation.
enum nvme_id_ctrl_fuses January 2023