nvme_cmb_size(2) Calculate size of the controller memory buffer Section 2 libnvme-dev bookworm source Description nvme_cmb_size NAME nvme_cmb_size - Calculate size of the controller memory buffer SYNOPSIS __u64 nvme_cmb_size (__u32 cmbsz ); ARGUMENTS cmbsz Value from controller register NVME_REG_CMBSZ RETURN size of controller memory buffer in bytes