libnvme(2)

💖 libnvme — enum nvme_features_id 💖

okay so this is a page from the libnvme API manual (section 2, bestie, we're in C library land) and it's literally just the glow-up list of every Features Feature Identifier NVMe has to offer. no cap. this is the enum u use when u wanna tell a drive "hey babe, change this one specific setting about urself." 44 of them. we're counting. 👑

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✨ NAME ✨

enum nvme_features_id — Features - Feature Identifiers

like... it's giving "the master list of IDs." that's the whole vibe. 🎀

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🌸 SYNOPSIS 🌸

enum nvme_features_id {
    NVME_FEAT_FID_ARBITRATION ,
    NVME_FEAT_FID_POWER_MGMT ,
    NVME_FEAT_FID_LBA_RANGE ,
    NVME_FEAT_FID_TEMP_THRESH ,
    NVME_FEAT_FID_ERR_RECOVERY ,
    NVME_FEAT_FID_VOLATILE_WC ,
    NVME_FEAT_FID_NUM_QUEUES ,
    NVME_FEAT_FID_IRQ_COALESCE ,
    NVME_FEAT_FID_IRQ_CONFIG ,
    NVME_FEAT_FID_WRITE_ATOMIC ,
    NVME_FEAT_FID_ASYNC_EVENT ,
    NVME_FEAT_FID_AUTO_PST ,
    NVME_FEAT_FID_HOST_MEM_BUF ,
    NVME_FEAT_FID_TIMESTAMP ,
    NVME_FEAT_FID_KATO ,
    NVME_FEAT_FID_HCTM ,
    NVME_FEAT_FID_NOPSC ,
    NVME_FEAT_FID_RRL ,
    NVME_FEAT_FID_PLM_CONFIG ,
    NVME_FEAT_FID_PLM_WINDOW ,
    NVME_FEAT_FID_LBA_STS_INTERVAL ,
    NVME_FEAT_FID_HOST_BEHAVIOR ,
    NVME_FEAT_FID_SANITIZE ,
    NVME_FEAT_FID_ENDURANCE_EVT_CFG ,
    NVME_FEAT_FID_IOCS_PROFILE ,
    NVME_FEAT_FID_SPINUP_CONTROL ,
    NVME_FEAT_FID_POWER_LOSS_SIGNAL ,
    NVME_FEAT_FID_PERF_CHARACTERISTICS ,
    NVME_FEAT_FID_FDP ,
    NVME_FEAT_FID_FDP_EVENTS ,
    NVME_FEAT_FID_NS_ADMIN_LABEL ,
    NVME_FEAT_FID_KEY_VALUE ,
    NVME_FEAT_FID_CTRL_DATA_QUEUE ,
    NVME_FEAT_FID_EMB_MGMT_CTRL_ADDR ,
    NVME_FEAT_FID_HOST_MGMT_AGENT_ADDR ,
    NVME_FEAT_FID_ENH_CTRL_METADATA ,
    NVME_FEAT_FID_CTRL_METADATA ,
    NVME_FEAT_FID_NS_METADATA ,
    NVME_FEAT_FID_SW_PROGRESS ,
    NVME_FEAT_FID_HOST_ID ,
    NVME_FEAT_FID_RESV_MASK ,
    NVME_FEAT_FID_RESV_PERSIST ,
    NVME_FEAT_FID_WRITE_PROTECT ,
    NVME_FEAT_FID_BP_WRITE_PROTECT

};

yes bestie, that's the whole roster, and no i will not be skipping any of them, we're doing all 44, periodt. 💅

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🦋 Constants 🦋

here's the read-me-down, one by one, in the exact order they show up. every single one of these is a feature identifier u can hand to the firmware. slay.

• NVME_FEAT_FID_ARBITRATION — Arbitration
• NVME_FEAT_FID_POWER_MGMT — Power Management
• NVME_FEAT_FID_LBA_RANGE — LBA Range Type
• NVME_FEAT_FID_TEMP_THRESH — Temperature Threshold
• NVME_FEAT_FID_ERR_RECOVERY — Error Recovery
• NVME_FEAT_FID_VOLATILE_WC — Volatile Write Cache
• NVME_FEAT_FID_NUM_QUEUES — Number of Queues
• NVME_FEAT_FID_IRQ_COALESCE — Interrupt Coalescing
• NVME_FEAT_FID_IRQ_CONFIG — Interrupt Vector Configuration
• NVME_FEAT_FID_WRITE_ATOMIC — Write Atomicity Normal
• NVME_FEAT_FID_ASYNC_EVENT — Asynchronous Event Configuration
• NVME_FEAT_FID_AUTO_PST — Autonomous Power State Transition
• NVME_FEAT_FID_HOST_MEM_BUF — Host Memory Buffer
• NVME_FEAT_FID_TIMESTAMP — Timestamp
• NVME_FEAT_FID_KATO — Keep Alive Timer
• NVME_FEAT_FID_HCTM — Host Controlled Thermal Management
• NVME_FEAT_FID_NOPSC — Non-Operational Power State Config
• NVME_FEAT_FID_RRL — Read Recovery Level Config
• NVME_FEAT_FID_PLM_CONFIG — Predictable Latency Mode Config
• NVME_FEAT_FID_PLM_WINDOW — Predictable Latency Mode Window
• NVME_FEAT_FID_LBA_STS_INTERVAL — LBA Status Information Report Interval
• NVME_FEAT_FID_HOST_BEHAVIOR — Host Behavior Support
• NVME_FEAT_FID_SANITIZE — Sanitize Config
• NVME_FEAT_FID_ENDURANCE_EVT_CFG — Endurance Group Event Configuration
• NVME_FEAT_FID_IOCS_PROFILE — I/O Command Set Profile
• NVME_FEAT_FID_SPINUP_CONTROL — Spinup Control
• NVME_FEAT_FID_POWER_LOSS_SIGNAL — Power Loss Signaling Config
• NVME_FEAT_FID_PERF_CHARACTERISTICS — Performance Characteristics
• NVME_FEAT_FID_FDP — Flexible Data Placement
• NVME_FEAT_FID_FDP_EVENTS — FDP Events
• NVME_FEAT_FID_NS_ADMIN_LABEL — Namespace Admin Label
• NVME_FEAT_FID_KEY_VALUE — Key Value Configuration
• NVME_FEAT_FID_CTRL_DATA_QUEUE — Controller Data Queue
• NVME_FEAT_FID_EMB_MGMT_CTRL_ADDR — Embedded Management Controller Address
• NVME_FEAT_FID_HOST_MGMT_AGENT_ADDR — Host Management Agent Address
• NVME_FEAT_FID_ENH_CTRL_METADATA — Enhanced Controller Metadata
• NVME_FEAT_FID_CTRL_METADATA — Controller Metadata
• NVME_FEAT_FID_NS_METADATA — Namespace Metadata
• NVME_FEAT_FID_SW_PROGRESS — Software Progress Marker
• NVME_FEAT_FID_HOST_ID — Host Identifier
• NVME_FEAT_FID_RESV_MASK — Reservation Notification Mask
• NVME_FEAT_FID_RESV_PERSIST — Reservation Persistence
• NVME_FEAT_FID_WRITE_PROTECT — Namespace Write Protection Config
• NVME_FEAT_FID_BP_WRITE_PROTECT — Boot Partition Write Protection Config

ngl bestie, that's the entire enum. zero options, zero flags, zero exit codes, no environment variables, no files — it's a plain enum and the description column is literally just the human-readable name for each ID. that IS the tea. 🍓

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🌈 SEE ALSO 🌈

okay so there's literally no SEE ALSO section in this one, which is a lil tragic, but like — the whole enum is self-contained. icon behavior honestly. ✨

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that's the whole page, bestie, every single constant accounted for, nobody left behind 🫶 — this was the enum nvme_features_id page of the libnvme API manual, dated July 2026, section libnvme(2). go forth and query some features, u gorgeous nerd. 💜🧚