qeth_bridge_emit_host_event(9)

📦 version 7.3.1, in nixpkgs unstable

💅 qeth_bridge_emit_host_event(9) — the Kernel API Manual era

okay so bestie, we're in the Kernel API Manual today and the main character is qeth_bridge_emit_host_event 🎀 this one is literally the bridgeport address change notification girlie, and she's out here telling the world (well, udev) when addresses move. no cap.

✨ NAME ✨

qeth_bridge_emit_host_event — bridgeport address change notification 🦋

🌸 SYNOPSIS 🌸

void qeth_bridge_emit_host_event (struct qeth_card *card , enum
qeth_an_event_type evtype , u8 code , struct net_if_token *token ,
struct mac_addr_lnid *addr_lnid );

she takes five args and returns nothing. void queen behavior, honestly 👑

💖 ARGUMENTS 💖

  • card — a qeth_card structure pointer, used for udev events. it's giving "here's the context bestie" 🫶
  • evtype — "normal" register/unregister, or abort, or reset. heads up: for abort and reset, token and addr_lnid are unused and may be NULL 🫧 (so like, don't stress about filling them in for those two, fr fr)
  • code — the event bitmask, and pay attention because this is the whole vibe check:
    • high order bit 0x80 with value 1 means removal of an object, 0 means addition of an object
    • 0x01 — VLAN
    • 0x02 — MAC
    • 0x03 — VLAN and MAC
  • token — a "network token" structure identifying the physical address of the port 🔥
  • addr_lnid — pointer to a structure with MAC address and VLAN ID 🍓

👑 DESCRIPTION 👑

so the way that this works: this function gets called when registrations and deregistrations are reported by the hardware 😭 and also when notifications are enabled — for all currently registered addresses. like she shows up for the whole roster, not just the new girls. iconic. ✨

🦋 SEE ALSO 🦋

Kernel file ./drivers/s390/net/qeth_l2_main.c and her whole friend group:

💀 friendly reminder: abort and reset events genuinely don't touch token or addr_lnid, so NULL is allowed there — not a bug, that's just her lifestyle.

okay that's the whole page, you ate that 💅 this came from ./drivers/s390/net, October 2026, filed under qeth_bridge_emit_host_event(9) — mwah, go forth and emit those events babes 🌈💜

📦 where this page comes from