libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

struct nvme\_host\_mem\_buf\_attrs - Host Memory Buffer - Attributes Data Structure

# [SYNOPSIS](#SYNOPSIS)

struct nvme\_host\_mem\_buf\_attrs {  
**\_\_le32 hsize;**  
**\_\_le32 hmdlal;**  
**\_\_le32 hmdlau;**  
**\_\_le32 hmdlec;**  
**\_\_u8 rsvd16\[4080];**  
};

# [Members](#Members)

[hsize](#hsize)

Host Memory Buffer Size

[hmdlal](#hmdlal)

Host Memory Descriptor List Lower Address

[hmdlau](#hmdlau)

Host Memory Descriptor List Upper Address

[hmdlec](#hmdlec)

Host Memory Descriptor List Entry Count

[rsvd16](#rsvd16)

Reserved

struct nvme\_host\_mem\_buf\_attrs October 2026

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Document: nvme_host_mem_buf_attrs-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli