fw_iso_resources_update(9)

✨ fw_iso_resources_update(9) ✨

okay so this is a page from the Kernel API Manual and it's literally all about fw_iso_resources_update — bestie, if you're doing FireWire audio driver stuff, this is your moment 💅

---

🌸 NAME 🌸

fw_iso_resources_update — update resource allocations after a bus reset

no cap, that's the whole vibe: the bus got reset, and now somebody's gotta pick up the pieces 🎀

---

🦋 SYNOPSIS 🦋

int fw_iso_resources_update (struct fw_iso_resources *r );

---

💖 ARGUMENTS 💖

• r — the resource manager. that's it, that's the whole parameter 🫶

---

🔥 DESCRIPTION 🔥

okay so listen 👑 — you must call this function from your driver's .update handler. it's the whole point: it reallocates any resources that were allocated before the bus reset. like, the bus went and did a little reset on you, and this is the glow-up where everything gets sorted back out ✨

and the icon behavior? it is safe to call this function if no resources are currently allocated. no allocations, no problem, it just chills 💀

it returns a negative error code on failure. and if that happens — and this is the serious part, bestie, don't skip it — the caller must stop streaming. fr fr. like, streaming stops, no negotiating 😭

---

🌈 SEE ALSO 🌈

• Kernel file ./sound/firewire/iso-resources.c
• fw_iso_resources_init(9)
• fw_iso_resources_destroy(9)
• fw_iso_resources_allocate(9)
• fw_iso_resources_free(9)

go read the whole friend group, they're all icons 🧚

---

and that's the page!! sourced from ./sound/firewire, dated October 2026, living in the Kernel API Manual — mwah, slay, periodt 💜🎀