dvb_ringbuff...nlock_wakeup(9)

💅 dvb_ringbuff...nlock_wakeup(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — yes that's the manual name, yes it's a mouthful, no we're not changing it. today's main character is a function with a name so long it got its own abbreviation in the header: dvb_ringbuff...nlock_wakeup(9). iconic honestly. 🎀

---

🌸 NAME 🌸

dvb_ringbuffer_flush_spinlock_wakeup — flush a buffer that's protected by a spinlock, and wake up whatever task(s) are waiting on it 🫶

like, two jobs. one function. she's booked and busy. 💅

---

✨ SYNOPSIS ✨

void dvb_ringbuffer_flush_spinlock_wakeup (struct dvb_ringbuffer *rbuf
);

returns nothing (void), takes one pointer, does the thing. no cap. 🔥

---

🦋 ARGUMENTS 🦋

• rbuf — pointer to struct dvb_ringbuffer 💖 that's it, that's the whole argument. she needs the ring buffer, she's gonna flush it, periodt.

---

🎀 SEE ALSO 🎀

bestie there is so much lore here, the whole friend group showed up 😭 — and it's all in the kernel file ./include/media/dvb_ringbuffer.h:

• struct dvb_ringbuffer(9) — the struct herself, the main character 👑
• dvb_ringbuffer_init(9) — the glow-up origin story
• dvb_ringbuffer_empty(9) — vibe check: is she empty?
• dvb_ringbuffer_free(9) — how much room she's got
• dvb_ringbuffer_avail(9) — how much is actually in there
• dvb_ringbuffer_reset(9) — starting fresh, we love a reset
• dvb_ringbuffer_flush(9) — the flush, but the chill version
• DVB_RINGBUFFER_PEEK(9) — look but don't touch 👀
• DVB_RINGBUFFER_SKIP(9) — moving on, literally
• dvb_ringbuffer_read_user(9) — reading, but to userspace
• dvb_ringbuffer_read(9) — reading, classic edition
• DVB_RINGBUFFER_WRITE_BYTE(9) — one single byte at a time, she's precise
• dvb_ringbuffer_write(9) — writing, the standard way
• dvb_ringbuffer_write_user(9) — writing, but from userspace
• dvb_ringbuffer_pkt_write(9) — packet-flavoured writing 📦
• dvb_ringbuffer_pkt_read_user(9) — packet reading, userspace style
• dvb_ringbuffer_pkt_read(9) — packet reading, plain
• dvb_ringbuffer_pkt_dispose(9) — packet said bye, dispose of it
• dvb_ringbuffer_pkt_next(9) — next packet bestie, keep it moving

---

⭐ friendly reminder: this one's spinlock-protected, so mind your locking vibes — the whole point of the flush and the wakeup living in the same function is that they happen together, iykyk 🧚

---

and that's the whole page, diva. 🌈 source lives in ./include/media, dated October 2026 — mwah, xoxo, go flush responsibly 💜🍓