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

enum nvme_id_ctrl_nvscc - This field indicates the configuration settings for NVM Vendor Specific command handling.

enum nvme_id_ctrl_nvscc {
NVME_CTRL_NVSCC_FMT

};

If set, all NVM Vendor Specific Commands use the format with NDT and NDM fields.
enum nvme_id_ctrl_nvscc January 2023