STRUCT IWL_TIME_MSMT_PTP_CTX(9)

💅 struct iwl_t...msmt_ptp_ctx(9) — Kernel API Manual, but make it make sense

okay bestie, so this is a page from the Kernel API Manual (yes, the actual kernel docs, we're fancy now 🎀) and it's all about struct iwl_time_msmt_ptp_ctx. Say that five times fast. I dare you. 🫶

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✨ NAME ✨

struct iwl_time_msmt_ptp_ctx — a vendor specific element that literally just exists to allow a space for flexibility for the userspace App 💖 (that's the whole job, and honestly? iconic.)

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🌸 SYNOPSIS 🌸

ok so here's the shape of it, and no I will not be paraphrasing code, that's illegal in my house:

struct iwl_time_msmt_ptp_ctx {
    union {
      struct {
        u8 element_id;
        u8 length;
        __le16 reserved;
        u8 data[PTP_CTX_MAX_DATA_SIZE];
      } ftm;
      struct {
        u8 element_id;
        u8 length;
        u8 data[PTP_CTX_MAX_DATA_SIZE];
      } tm;
    };
 };

like. look at it. two little structs vibing inside a union. main character energy fr fr 👑

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🦋 Members 🦋

okay this is the part where we meet the whole cast:

• {unnamed_union} — anonymous. no name. mysterious. doesn't need one. lowkey slay 💀
• ftm — the FTM specific vendor element 🌈
  • ftm.element_id — element id of the vendor specific ie
  • ftm.length — length of the vendor specific ie
  • ftm.reserved — for alignment (the little guy holding the door open so everything lines up 💅)
  • ftm.data — vendor specific data blob
• tm — the TM specific vendor element ⭐
  • tm.element_id — element id of the vendor specific ie
  • tm.length — length of the vendor specific ie
  • tm.data — vendor specific data blob

no cap: ftm and tm are the two options inside that union, so it's one or the other, not both. the union said what it said. 💜

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👑 SEE ALSO 👑

the friend group (a.k.a. everything in Kernel file ./drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h that you should also go read, because we support each other):

• enum iwl_data_path_subcmd_ids(9)
• struct iwl_mu_group_mgmt_cmd(9)
• struct iwl_mu_group_mgmt_notif(9)
• struct iwl_time_sync_cfg_cmd(9)
• enum iwl_synced_time_operation(9)
• struct iwl_synced_time_cmd(9)
• struct iwl_synced_time_rsp(9)
• struct iwl_time_msmt_notify(9)
• struct iwl_time_msmt_cfm_notify(9)
• struct iwl_channel_estimation_cfg(9)
• enum iwl_thermal_dual_chain_req_events(9)
• struct iwl_thermal_dual_chain_request(9)
• struct iwl_rlc_properties(9)
• struct iwl_sad_properties(9)
• struct iwl_rlc_config_cmd(9)
• enum iwl_rx_baid_action(9)
• struct iwl_rx_baid_cfg_cmd_alloc(9)
• struct iwl_rx_baid_cfg_cmd_modify(9)
• struct iwl_rx_baid_cfg_cmd_remove_v1(9)
• struct iwl_rx_baid_cfg_cmd_remove(9)
• struct iwl_rx_baid_cfg_cmd(9)
• struct iwl_rx_baid_cfg_resp(9)
• enum iwl_scd_queue_cfg_operation(9)
• struct iwl_scd_queue_cfg_cmd(9)
• enum iwl_sec_key_flags(9)
• struct iwl_sec_key_cmd(9)

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that's the whole page bestie, you ate that 🍓✨

source: ./drivers/net/wireless/intel/i... · October 2026 · struct iwl_t...msmt_ptp_ctx(9) — mwah, go read the other ones too 💖🧚