pdc_ring_init(9)

💫 pdc_ring_init(9) — it's giving "kernel API manual" ✨

Ok bestie, buckle up, because this is pdc_ring_init(9) from the Kernel API Manual, and it is lowkey iconic 🎀

---

🌸 NAME 🌸

pdc_ring_init — allocate DMA rings and initialize the constant fields of the descriptors in one ringset. Like, both things. One function. We love a multitasker 👑

---

🦋 SYNOPSIS 🦋

int pdc_ring_init (struct pdc_state *pdcs , int ringset );

---

💖 ARGUMENTS 💖

• pdcs — the PDC instance state, aka the main character of this whole situation 🫶
• ringset — the index of the ringset being used, so it knows which one we're talking about ✨

---

⭐ RETURN ⭐

Returns PDC_SUCCESS if the ring got initialized — and if it's < 0, welp, that's the "otherwise" case 😭 (i.e. it did not slay).

---

🔥 SEE ALSO 🔥

First up, the source file itself, Kernel file ./drivers/mailbox/bcm-pdc-mailbox.c — go read her fr fr 📖💅

Then the whole friend group, no cap:

• pdc_setup_debugfs(9)
• pdc_build_rxd(9)
• pdc_build_txd(9)
• pdc_receive_one(9)
• pdc_receive(9)
• pdc_tx_list_sg_add(9)
• pdc_tx_list_final(9)
• pdc_rx_list_init(9)
• pdc_rx_list_sg_add(9)
• pdc_irq_handler(9)
• pdc_work_cb(9)
• pdc_desc_count(9)
• pdc_rings_full(9)
• pdc_last_tx_done(9)
• pdc_send_data(9)
• pdc_hw_init(9)
• pdc_hw_disable(9)
• pdc_rx_buf_pool_create(9)
• pdc_interrupts_init(9)
• pdc_mb_init(9)
• pdc_dt_read(9)
• pdc_probe(9)

---

💀 reminder: this is a kernel API page, so everything here is serious business — but you're doing amazing sweetie 🌈

---

Sign-off time, bestie 💜 This lil masterpiece lives in ./drivers/mailbox and it's dated October 2026 — periodt, that's the whole footer, mwah 🍓🧚