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

nvme_set_features_auto_pst - Set autonomous power state feature

int nvme_set_features_auto_pst (int fd , bool apste , bool save , struct nvme_feat_auto_pst *apst , __u32 *result );

File descriptor of nvme device
Autonomous Power State Transition Enable
Save value across power states
Autonomous Power State Transition
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_set_features_auto_pst January 2023