nvme_ctrl_info_fwrev
ret = strlcpy(buf, nvme_ctrl_info_fwrev(ctrl), buflen);
nvme_ctrl_info_fwrev(info), version->v_major, version->v_minor);
extern const char *nvme_ctrl_info_fwrev(nvme_ctrl_info_t *);
(void) printf("Firmware Revision: %s\n", nvme_ctrl_info_fwrev(info));
if (strcmp(nvme_ctrl_info_fwrev(info),
nvme_ctrl_info_fwrev(rest_info)) != 0) {