libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_apst\_entry - Autonomous Power State Transition

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_apst\_entry {  
**NVME\_APST\_ENTRY\_ITPS\_SHIFT** ,  
**NVME\_APST\_ENTRY\_ITPT\_SHIFT** ,  
**NVME\_APST\_ENTRY\_ITPS\_MASK** ,  
**NVME\_APST\_ENTRY\_ITPT\_MASK**

};

# [Constants](#Constants)

[NVME\_APST\_ENTRY\_ITPS\_SHIFT](#NVME_APST_ENTRY_ITPS_SHIFT)

Idle Transition Power State Shift

[NVME\_APST\_ENTRY\_ITPT\_SHIFT](#NVME_APST_ENTRY_ITPT_SHIFT)

Idle Time Prior to Transition Shift

[NVME\_APST\_ENTRY\_ITPS\_MASK](#NVME_APST_ENTRY_ITPS_MASK)

Idle Transition Power State Mask

[NVME\_APST\_ENTRY\_ITPT\_MASK](#NVME_APST_ENTRY_ITPT_MASK)

Idle Time Prior to Transition Mask

enum nvme\_apst\_entry October 2026

---

Document: nvme_apst_entry-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli