STRUCT BRCMF_BUS_MSGBUF(9)

💅 struct brcmf_bus_msgbuf(9) — Kernel API Manual ✨

okay so bestie, lemme introduce you to struct brcmf_bus_msgbuf — lowkey the bus ringbuf go-to "if" when we're in the msgbuf case. it's giving infrastructure, it's giving main character energy for the wireless stack 🦋.

✨ SYNOPSIS ✨

struct brcmf_bus_msgbuf {
    struct brcmf_commonring *commonrings[BRCMF_NROF_COMMON_MSGRINGS];
    struct brcmf_commonring **flowrings;
    u32 rx_dataoffset;
    u32 max_rxbufpost;
    u16 max_flowrings;
    u16 max_submissionrings;
    u16 max_completionrings;
 };

🎀 Members 🎀

• commonrings — the commonrings that are always there, no cap. they're the ride-or-dies 💖.
• flowrings — commonrings that get dynamically created and destroyed for data 🌀. they come and go, honestly iconic.
• rx_dataoffset — if this is set, then all rx data has this offset, periodt.
• max_rxbufpost — the absolute max number of buffers you can post for rx 🔥. it's giving capacity queen.
• max_flowrings — the maximum number of tx flow rings supported 👑.
• max_submissionrings — the maximum number of submission rings (h2d) supported 💫.
• max_completionrings — the maximum number of completion rings (d2h) supported 🌸.

🌈 SEE ALSO 🌈

go look at the kernel file, it's literally right here bestie:

./drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h

and while you're at it, say hi to the fam 🫶:

• struct brcmf_bus_ops(9)
• struct brcmf_bus_stats(9)
• struct brcmf_bus(9)

k that's the whole vibe, fr fr. this page is comin' at you straight from ./drivers/net/wireless/broadco... — October 2026 edition, struct brcmf_bus_msgbuf(9) and all 💜. slay, go forth and read your structs 🧚‍♀️✨.