libnvme_get_feature_length(9)                               libnvme API manual

NAME
       libnvme_get_feature_length - Retrieve the command payload length for a
       specific feature identifier

SYNOPSIS
       int libnvme_get_feature_length (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.

September 2026            libnvme_get_feature_length
                                                 libnvme_get_feature_length(9)