nvme_ns_attach_ctrls - Man Page
Attach namespace to controllers
int nvme_ns_attach_ctrls (int fd , __u32 nsid , struct nvme_ctrl_list *ctrlist );
File descriptor of nvme device
Namespace ID to attach
Controller list to modify attachment state of nsid
The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.
February 2023 libnvme API manual