---
name: "nvme_get_feature_length2"
section: "2"
platform: "linux"
package: "libnvme-dev"
version: "1.13-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nvme_get_feature_length2"
---

# nvme\_get\_feature\_length2(2)

Retreive the command payload length for a specific feature identifier

## NAME

nvme\_get\_feature\_length2 - Retreive the command payload length for a specific feature identifier

## SYNOPSIS

**int nvme\_get\_feature\_length2** **(int fid** *,* **\_\_u32 cdw11** *,* **enum nvme\_data\_tfr dir** *,* **\_\_u32 \*len** *);*

## ARGUMENTS

- fid

  Feature identifier, see *enum nvme\_features\_id*.

- cdw11

  The cdw11 value may affect the transfer (only known fid is NVME\_FEAT\_FID\_HOST\_ID)

- dir

  Data transfer direction: false - host to controller, true - controller to host may affect the transfer (only known fid is NVME\_FEAT\_FID\_HOST\_MEM\_BUF).

- len

  On success, set to this features payload length in bytes.

## RETURN

0 on success, -1 with errno set to EINVAL if the function did not recognize *fid*.