nvme_get_features_host_mem_buf - Man Page

int nvme_get_features_host_mem_buf (int fd , enum nvme_get_features_sel sel , __u32 *result );

fd

File descriptor of nvme device

sel

Select which type of attribute to return, see enum nvme_get_features_sel

result

The command completion result from CQE dword0

Deprecated: doesn't fetch the Host Memory Buffer Attributes data structure. Use nvme_get_features_host_mem_buf2 instead.

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