nvme_identify_ns_descs - Man Page
Retrieves namespace descriptor list
int nvme_identify_ns_descs (int fd , __u32 nsid , struct nvme_ns_id_desc *descs );
File descriptor of nvme device
The namespace id to retrieve descriptors
User space destination address to transfer the data
A list of Namespace Identification Descriptor structures is returned to the host for the namespace specified in the Namespace Identifier (NSID) field if it is an active NSID.
The data returned is in the form of an array of 'struct nvme_ns_id_desc'.
See struct nvme_ns_id_desc for the definition of the returned structure.
The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.
April 2023 libnvme API manual