xemaclite_update_address(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xemaclite_update_address(9) — it's from the Kernel API Manual, bestie

okay so this whole page lives in the Kernel API Manual, and it's about one tiny but iconic function: xemaclite_update_address. It updates the MAC address in the device. That's it. That's the vibe. 👑

✨ NAME ✨

xemaclite_update_address — Update the MAC address in the device 💖

🌸 SYNOPSIS 🌸

void xemaclite_update_address (struct net_local *drvdata , const u8
*address_ptr );

like literally that's the whole signature, no cap. 🫶

🎀 ARGUMENTS 🎀

  • drvdata — Pointer to the Emaclite device private data. it's giving "the good stuff lives in here" ✨
  • address_ptr — Pointer to the MAC address. heads up bestie, the MAC address is a 48-bit value 👀

🦋 DESCRIPTION 🦋

okay so before you call this, the tea is: Tx must be idle and Rx should be idle for deterministic results. like, no packets mid-flight if you want the predictable behaviour, understood? 💀

it is recommended that this function should be called after the initialization and before transmission of any packets from the device. so: init first, then set the address, then start yeeting packets. order matters, iykyk 🌈

and here's the slay part — the MAC address can be programmed using any of the two transmit buffers (if configured). two buffers, your choice, main character energy either way 🎀

🔥 SEE ALSO 🔥

so the source of all this lore is the Kernel file ./drivers/net/ethernet/xilinx/xilinx_emaclite.c, plus all these icons:

like, read them all. do it for the plot. 📚💅

lowercase reminder bestie: if you're poking at the hardware while Tx/Rx aren't idle, you're not getting deterministic results and that's on you 🙈

okay that's the page!! 🧚 it comes from ./drivers/net/ethernet/xilinx, dated October 2026, and the manual it lives in is the Kernel API Manual — periodt, mwah 💜⭐

📦 where this page comes from