mbox_bind_client(9)

📦 version 7.3.1, in nixpkgs unstable

💌 NAME 💌

okay so bestie, gather round — mbox_bind_client — literally just bind a client to a mailbox channel. that's the whole vibe. 🎀

✨ SYNOPSIS ✨

int mbox_bind_client (struct mbox_chan *chan , struct mbox_client *cl );

🫶 ARGUMENTS 🫶

  • chan — the mailbox channel you're tying your client to. like, this is the channel, the one, the main character. 💅
  • cl — the identity of the client that's asking for the channel. who's asking? it's giving you. 🦋

🌸 DESCRIPTION 🌸

so here's the tea: the client rocks up and spells out its requirements and its capabilities while it's asking for a mailbox channel. that's the whole negotiation. lowkey iconic. ✨

🚨 important, no cap: this can't be called from atomic context. like, do not try it. it will not slay.

the channel gets exclusively allocated — and the way that it's exclusive means no other client can use it until the owner calls mbox_free_channel. periodt. 👑

after the assignment goes through, any packet received on this channel gets handed straight over to the client via the 'rx_callback'. every single one. 🍓

and this one's important too: the framework holds a reference to the client, so the mbox_client structure shouldn't be modified until mbox_free_channel returns. don't touch it, don't tweak it, don't even look at it funny until then. 🙈💀

🔥 RETURN 🔥

  • 0 — the channel got assigned to the client successfully. slay! ✅
  • <0 — the request failed. 😭 rip.

🧚 SEE ALSO 🧚

kernel file ./drivers/mailbox/mailbox.c, plus the whole bestie squad:

💖 and that's the whole page bestie 💖 brought to you by the kernel docs living in ./drivers/mailbox, dated October 2026 — iykyk. go bind some channels, you've got this. 🌈👑🫶

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