STRUCT IEEE802154_HW(9)

✨ struct ieee802154_hw(9) ✨

okay bestie, sit down, we're doing a Kernel API Manual deep dive 💅 this one's from the <9> section, i.e. kernel internals territory, and it's all about ieee802154 hardware — yes, the fancy name for 802.15.4 stuff, lowkey iconic 🦋

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🌸 NAME 🌸

struct ieee802154_hw — ieee802154 hardware. that's it, that's the whole vibe 🎀

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✨ SYNOPSIS ✨

struct ieee802154_hw {
    int extra_tx_headroom;
    u32 flags;
    struct device *parent;
    void *priv;
    struct wpan_phy *phy;
 };

literally the whole struct, copied exactly, no cap 🙈

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🦋 Members 🦋

so bestie, let's meet the members one by one, they're all main characters in their own way 👑

• extra_tx_headroom — this is the headroom you reserve in each transmit skb for the driver to use (like for transmit headers, yk). think of it as ✨space you set aside✨ before the actual payload shows up 🎀
• flags — hardware flags! for the deets go peek at enum ieee802154_hw_flags, iykyk 🫶
• parent — the parent device of the hardware. the momager of the operation 💅
• priv — a pointer to the private area that was allocated for driver use along with this structure. it's giving built-in storage, obsessed 🍓
• phy — this points to the struct wpan_phy allocated for this 802.15.4 PHY. very "this is the physical layer bestie" energy 💜

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🌈 SEE ALSO 🌈

run, don't walk, to all of these 👟✨

• Kernel file ./include/net/mac802154.h enum
• ieee802154_hw_addr_filt_flags(9)
• struct ieee802154_hw_addr_filt(9)
• enum ieee802154_hw_flags(9)
• ieee802154_get_fc_from_skb(9)
• ieee802154_skb_dst_pan(9)
• ieee802154_skb_src_pan(9)
• ieee802154_skb_is_intra_pan_addressing(9)
• ieee802154_be64_to_le64(9)
• ieee802154_le64_to_be64(9)
• ieee802154_le16_to_be16(9)
• ieee802154_be16_to_le16(9)
• ieee802154_alloc_hw(9)
• ieee802154_free_hw(9)
• ieee802154_register_hw(9)
• ieee802154_unregister_hw(9)
• ieee802154_rx_irqsafe(9)
• ieee802154_xmit_complete(9)
• ieee802154_xmit_error(9)
• ieee802154_xmit_hw_error(9)

like, the whole squad fr fr 😭🔥

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💀 friendly reminder: everything above is straight from the manual — no invented behaviour, no extra tips, just the facts with better eyeliner. if you're poking at drivers, read the actual kernel source too, bestie.

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aaaand that's the page! 🎀 this deliciousness lives in ./include/net, dated October 2026, and the title is struct ieee802154_hw(9) in the Kernel API Manual — go forth and slay your 802.15.4 adventures, periodt 💅💖🦋