STRUCT IWL_FW_ERROR_DUMP_FW_MON(9)

💅 struct iwl_fw_error_dump_fw_mon — FW monitor data

okay bestie, welcome to the Kernel API Manual (section 9, yes that section 9) 🎀 — today's main character is struct iwl_fw_error_dump_fw_mon, and honestly? it's giving "tiny struct, big responsibilities." it's the little container that holds a chunk of FW monitor data. slay.

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✨ NAME ✨

struct iwl_fw_error_dump_fw_mon — FW monitor data. that's it, that's the vibe. 💖

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🦋 SYNOPSIS 🦋

struct iwl_fw_error_dump_fw_mon {
    __le32 fw_mon_wr_ptr;
    __le32 fw_mon_base_ptr;
    __le32 fw_mon_cycle_cnt;
    __le32 fw_mon_base_high_ptr;
    __le32 reserved[2];
    u8 data[];
 };

literally copy that exactly, no cap, don't touch a single character 😭

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👑 Members 👑

• fw_mon_wr_ptr — the position of the write pointer in the cyclic buffer. it's like the little "you are here" dot on a map, except the map is a ring and the dot moves forever 🔥
• fw_mon_base_ptr — base pointer of the data. the starting point, the origin story, the main character's hometown 🫶
• fw_mon_cycle_cnt — number of wraparounds. yes bestie, it wraps around — this is a count of how many times it's gone all the way around the loop 🌀
• fw_mon_base_high_ptr — used in AX210 devices 💀 the base address is 64 bit, so fw_mon_base_ptr holds LSB 32 bits and fw_mon_base_high_ptr hold MSB 32 bits. two halves, one address, iconic teamwork 🧚
• reserved — for future use 👀 (future us is gonna be so grateful, bestie)
• data — captured data. the actual goods, the payload, the reason we're all here ⭐

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🌸 SEE ALSO 🌸

Kernel file ./drivers/net/wireless/intel/iwlwifi/fw/error-dump.h and friends — the whole extended universe, fr fr:

• enum iwl_fw_error_dump_type(9)
• struct iwl_fw_error_dump_data(9)
• struct iwl_dump_file_name_info(9)
• struct iwl_fw_error_dump_file(9)
• struct iwl_fw_error_dump_txcmd(9)
• struct iwl_fw_error_dump_fifo(9)
• struct iwl_fw_error_dump_info(9)
• struct iwl_fw_error_dump_smem_cfg(9)
• struct iwl_fw_error_dump_prph(9)
• struct iwl_fw_error_dump_mem(9)
• struct iwl_fw_ini_error_dump_data(9)
• struct iwl_fw_ini_dump_file_hdr(9)
• struct iwl_fw_ini_fifo_hdr(9)
• struct iwl_fw_ini_error_dump_range(9)
• struct iwl_fw_ini_error_dump_header(9)
• struct iwl_fw_ini_error_dump(9)
• struct iwl_fw_ini_error_dump_register(9)
• struct iwl_fw_ini_dump_cfg_name(9)
• struct iwl_fw_ini_err_table_dump(9)
• struct iwl_fw_error_dump_rb(9)
• struct iwl_fw_ini_monitor_dump(9)
• struct iwl_fw_ini_special_device_memory(9)
• struct iwl_fw_error_dump_paging(9)
• iwl_fw_error_next_data(9)
• enum iwl_fw_dbg_trigger(9)
• struct iwl_fw_error_dump_trigger_desc(9)

like, that's a whole friend group 💜

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💀 reminder bestie: those are the exact names. no renaming, no "fixing," no creative liberties. iykyk.

okay that's the page!! this lovely little number lives at ./drivers/net/wireless/intel/i... (yes the path got cutely truncated, that's just how it is 🙈), dated October 2026 in the Kernel API Manual, section 9. mwah, go read the source, ily, bye 🎀✨💖