ca8210_net_rx(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ca8210_net_rx 💅

okay bestie, so this is ca8210_net_rx(9) from the Kernel API Manual — yes it's a kernel manpage, yes it's section 9, yes we're gonna get through it together 🌸

✨ NAME ✨

ca8210_net_rx — the function that acts upon received SAP commands that are relevant to the network driver 🫶

🌈 SYNOPSIS 🌈

int ca8210_net_rx (struct ieee802154_hw *hw , u8 *command , size_t len );

like, that's the whole signature, no cap. int going in, int coming out 💫

🎀 ARGUMENTS 🎀

  • hw — the ieee802154_hw that the command was received by 👑
  • command — an octet array of the received command, literally just bytes bestie 🍓
  • len — the length of the received command, so we know how many bytes we're dealing with 💀

🦋 DESCRIPTION 🦋

so the spi driver calls this whenever a SAP command comes in, right? and like — that's the moment. ca8210_net_rx is the main character here 🔥 it looks at the command, figures out whether it's actually of interest to the network driver, and takes the necessary action ✨

that's it. that's the vibe. receive → check → do the thing 💅

⭐ RETURN ⭐

returns 0 or a linux error code 🙈 (so, y'know, check it. don't just assume it slayed.)

💖 SEE ALSO 💖

kernel file ./drivers/net/ieee802154/ca8210.c and honestly the whole friend group:

like, that's sixty-ish entries bestie, we did not skip a single one 🫶✨

ngl the whole thing lives in ./drivers/net/ieee802154 — that's where the magic happens 🧚

okay that's the page!! source dir was ./drivers/net/ieee802154, dated October 2026, still ca8210_net_rx(9) forever 💜 periodt. go read some kernel source, ily, bye 🎀

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