STRUCT IWL_DEV_TX_POWER_CMD_V10(9)

💅 struct iwl_dev_tx_power_cmd_v10(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's all about struct iwl_dev_tx_power_cmd_v10, aka the TX power reduction cmd. yes the name is long. yes it's iconic. no we're not shortening it. 🎀

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✨ NAME ✨

struct iwl_dev_tx_power_cmd_v10 — TX power reduction cmd. that's literally it, that's the whole vibe. 🦋

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✨ SYNOPSIS ✨

struct iwl_dev_tx_power_cmd_v10 {
    __le16
per_chain[IWL_NUM_CHAIN_TABLES_V2][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V2];
    u8 per_chain_restriction_changed;
    u8 reserved;
    __le32 timer_period;
    __le32 flags;
 };

look at her. three-dimensional array, two little u8s, two little __le32s. main character energy honestly. 👑

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🌸 Members 🌸

• per_chain — per chain restrictions. she's giving structure, she's giving [IWL_NUM_CHAIN_TABLES_V2][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V2] levels of depth, we love a multi-dimensional queen. 💜
• per_chain_restriction_changed — tells you whether per_chain_restriction has changed since the last command. only used if set_mode is IWL_TX_POWER_MODE_SET_SAR_TIMER. so like… it's conditional, it has boundaries, we respect that. 🫶
• reserved — reserved (padding). she's just there for the vibes. filler episode. no cap. 💀
• timer_period — timer in milliseconds. if it expires, the FW will change to default BIOS values. relevant if setMode is IWL_TX_POWER_MODE_SET_SAR_TIMER. so bestie, clock's ticking like literally. ⏰✨
• flags — reduce power flags. flags! plural! reduction! we stan a bitfield moment. 🔥

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📝 note 📝

if not changed, the command is used for keep alive only. like a little "hey girl just checking in" text. lowkey wholesome. 💖

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👀 SEE ALSO 👀

Kernel file ./drivers/net/wireless/intel/iwlwifi/fw/api/power.h — go read it, it's the source fr fr. then there's this whole friend group:

enum iwl_ltr_config_flags(9), struct iwl_ltr_config_cmd_v1(9), struct iwl_ltr_config_cmd(9), enum iwl_power_flags(9), struct iwl_powertable_cmd(9), enum iwl_device_power_flags(9), struct iwl_device_power_cmd(9), struct iwl_mac_power_cmd_v2(9), struct iwl_mac_power_cmd(9), struct iwl_dev_tx_power_common(9), struct iwl_dev_tx_power_cmd_v3(9), struct iwl_dev_tx_power_cmd_v4(9), struct iwl_dev_tx_power_cmd_v5(9), struct iwl_dev_tx_power_cmd_v8(9), struct iwl_dev_tx_power_cmd_v3_v8(9), struct iwl_dev_tx_power_cmd_v9(9), enum iwl_geo_per_chain_offset_operation(9), struct iwl_per_chain_offset(9), struct iwl_geo_tx_power_profiles_cmd_v1(9), struct iwl_geo_tx_power_profiles_cmd_v2(9), struct iwl_geo_tx_power_profiles_cmd_v3(9), struct iwl_geo_tx_power_profiles_cmd_v4(9), struct iwl_geo_tx_power_profiles_cmd_v5(9), struct iwl_geo_tx_power_profiles_cmd_v6(9), struct iwl_geo_tx_power_profiles_resp(9), enum iwl_ppag_flags(9), union iwl_ppag_table_cmd(9), struct iwl_sar_offset_mapping_cmd(9), struct iwl_beacon_filter_cmd(9), struct iwl_txpower_constraints_cmd(9)

like, the whole v3-through-v10 sibling lineup is right there. one big happy struct family reunion. iykyk. 🌈

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⚠️ reminder bestie: timer_period expiring means FW flips to default BIOS values — so set it with intention, not on a whim. 🧚

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anyway that's the page! sourced from ./drivers/net/wireless/intel/i..., dated October 2026, and if you need me i'll be right here being obsessed with struct iwl_dev_tx_power_cmd_v10(9). periodt. 💅🎀🌷