STRUCT QRTR_HDR_V1(9)

💅 struct qrtr_hdr_v1(9) — like, the Kernel API Manual, but make it cute ✨

Okay bestie, buckle up 🎀 — today's main character is struct qrtr_hdr_v1, straight out of the Kernel API Manual, and she is iconic.

🌸 NAME 🌸

struct qrtr_hdr_v1 — the (I|R)PCrouter packet header, version 1. yes, "PCrouter", and yes, the (I|R) is doing exactly what you think it's doing 💫

✨ SYNOPSIS ✨

Here's the whole glow-up, verbatim, no cap:

struct qrtr_hdr_v1 {
    __le32 version;
    __le32 type;
    __le32 src_node_id;
    __le32 src_port_id;
    __le32 confirm_rx;
    __le32 size;
    __le32 dst_node_id;
    __le32 dst_port_id;
 };

Eight __le32 fields. That's it. That's the whole struct. She's lowkey minimalist and I respect it 🫶

💖 MEMBERS 💖

Every field, one by one, in order, because we do not skip ✨

• version — the protocol version. which version of the vibe we're on 💅
• type — the packet type; it's one of QRTR_TYPE_*. pick your fighter 👑
• src_node_id — the source node. where it's coming from 🦋
• src_port_id — the source port. the specific door on that node 🚪
• confirm_rx — a boolean; it's literally just "should a resume-tx packet be send in reply?" — yes, send, that's the original wording, I don't make the rules 🙈
• size — length of the packet, and heads up: this is excluding this header 🧚 so don't be out here counting the header too, that's a whole different number 💀
• dst_node_id — the destination node. where it's going 🎀
• dst_port_id — the destination port. the door on the other end 🌈

🔥 SEE ALSO 🔥

Go snoop the Kernel file ./net/qrtr/af_qrtr.c and then go be obsessed with all of these besties:

• struct qrtr_hdr_v2(9)
• struct qrtr_node(9)
• struct qrtr_tx_flow(9)
• qrtr_tx_resume(9)
• qrtr_tx_wait(9)
• qrtr_tx_flow_failed(9)
• qrtr_endpoint_post(9)
• qrtr_alloc_ctrl_packet(9)
• qrtr_endpoint_register(9)
• qrtr_endpoint_unregister(9)

fr fr, read them in order, it's giving syllabus energy 📚✨

And that's the tea ☕ — this page lives under ./net/qrtr, dated October 2026, and it's struct qrtr_hdr_v1(9) all the way down. mwah 💋 slay, bye 🦋💜