---
name: "nvme_data_tfr-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_data_tfr-libnvme3"
---

# nvme\_data\_tfr-libnvme3(2)

Data transfer direction of the command

## NAME

enum nvme\_data\_tfr - Data transfer direction of the command

## SYNOPSIS

enum nvme\_data\_tfr {\
     **NVME\_DATA\_TFR\_NO\_DATA\_TFR** , \
\
     **NVME\_DATA\_TFR\_HOST\_TO\_CTRL** , \
\
     **NVME\_DATA\_TFR\_CTRL\_TO\_HOST** , \
\
     **NVME\_DATA\_TFR\_BIDIRECTIONAL**

};

## Constants

- NVME\_DATA\_TFR\_NO\_DATA\_TFR

  No data transfer

- NVME\_DATA\_TFR\_HOST\_TO\_CTRL

  Host to controller

- NVME\_DATA\_TFR\_CTRL\_TO\_HOST

  Controller to host

- NVME\_DATA\_TFR\_BIDIRECTIONAL

  Bidirectional