---
name: "nvme_mi_vpd_usce-libnvme3"
section: "2"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nvme_mi_vpd_usce-libnvme3"
---

# nvme\_mi\_vpd\_usce-libnvme3(2)

Upstream Connector Element Descriptor

## NAME

struct nvme\_mi\_vpd\_usce - Upstream Connector Element Descriptor

## SYNOPSIS

struct nvme\_mi\_vpd\_usce {\
     **\_\_u8 typ;**\
     **\_\_u8 rev;**\
     **\_\_u8 len;**\
     **\_\_u8 ff;**\
     **\_\_u8 lptr;**\
     **\_\_u8 rsvd6\[2\];**\
     **\_\_u8 maxapwr;**\
     **\_\_le16 maxpwr;**\
     **\_\_u8 updc;**\
     **\_\_u8 upd\[\];**\
 };\

## Members

- typ

  Type: set to NVME\_MI\_ELEM\_USCE.

- rev

  Revision: cleared to 0h.

- len

  Length of this Upstream Connector Element Descriptor in bytes.

- ff

  Form Factor of the NVMe Storage Device, see *enum* *nvme\_mi\_form\_factor*.

- lptr

  Label Pointer: index of the Label Element Descriptor containing this Upstream Connector's label, if any. A value of 0h indicates there is no associated label.

- rsvd6

  Reserved

- maxapwr

  Maximum Auxiliary Power in 10 mW increments consumed by the NVMe Storage Device from this Upstream Connector. A value of 0h indicates auxiliary power is not used.

- maxpwr

  Maximum Power in Watts consumed by the NVMe Storage Device.

- updc

  Upstream Port Descriptor Count: number of Upstream Port Descriptors in *upd*.

- upd

  Upstream Port Descriptor list. Each entry's size is implementation specific; use *len* and *updc* to walk the list.