hci_dev_get...rom_property(9)

🦋 hci_dev_get_bd_addr_from_property 🦋

okay bestie, welcome to the Kernel API Manual ✨ this one's a lil' function page from the Bluetooth corner of the kernel, and honestly? it's giving "quiet hero energy" 💅

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🌸 NAME 🌸

hci_dev_get_bd_addr_from_property — literally the glow-up moment where we go grab the Bluetooth Device Address (BD_ADDR) for a HCI device, and we get it from a firmware node property 🎀

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✨ SYNOPSIS ✨

void hci_dev_get_bd_addr_from_property (struct hci_dev *hdev );

that's it. that's the whole vibe. no return value, she just does it 🫶

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💜 ARGUMENTS 💜

• hdev — the HCI device 👑 like, the one main character we're doing all this for

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💖 DESCRIPTION 💖

so what she does is: search the firmware node for local-bd-address 🔍✨ that's the mission, that's the whole quest.

and here's the important part, ngl — all-zero BD addresses get rejected 😭 and that's on purpose, because a zero address could totally be one of those properties that exist in the firmware tables but the firmware never actually updated. like, imagine the DTS defines local-bd-address with a zero BD address in it? yeah. that's a whole fake-out 💀 so we don't fall for it. periodt.

fr fr, don't skip this check — a zero BD_ADDR is not a real address, it's a "nobody filled this in yet" situation 🙈

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🎀 SEE ALSO 🎀

• Kernel file ./net/bluetooth/hci_sync.c — go read it, iykyk 🧚

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and that's the page, bestie 🌈 it's from the ./net/bluetooth corner of the tree, dated October 2026 — slay, iconic, no notes 💅💖

⭐ mwah ⭐