DOKK / manpages / debian 12 / libnvme-dev / nvme_get_features_data.2.en
nvme_get_features_data(2) libnvme API manual nvme_get_features_data(2)

nvme_get_features_data - Helper function for @nvme_get_features()

int nvme_get_features_data (int fd , enum nvme_features_id fid , __u32 nsid , __u32 data_len , void *data , __u32 *result );

File descriptor of nvme device
Feature identifier
Namespace ID, if applicable
Length of feature data, if applicable, in bytes
User address of feature data, if applicable
The command completion result from CQE dword0

The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.

nvme_get_features_data January 2023