pdc_work_cb(9)

🌸 pdc_work_cb(9) — the little cleanup crew that shows up after the interrupt chaos 🌸

okay bestie, so like… the manual name is pdc_work_cb(9) and this whole page is about that one function, iykyk 💅

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🎀 NAME 🎀

pdc_work_cb — it's the work callback that runs all the deferred processing after a DMA receive interrupt, and then (queen behaviour) reenables the receive interrupt ✨

yeah. that's it. that's the job. lowkey important though, no cap.

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🦋 SYNOPSIS 🦋

void pdc_work_cb (struct work_struct *t );

copy it exactly, don't @ me about the spacing 🫶

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💖 ARGUMENTS 💖

• t — a pointer to the Altera sSGDMA channel structure, fr fr. that's the whole vibe check for this parameter.

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🔥 SEE ALSO 🔥

the kernel file ./drivers/mailbox/bcm-pdc-mailbox.c is where all the lore lives 💀 and it comes with a whole friend group of functions — every single one, right here:

• 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_ring_init(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)

like, the whole squad. go say hi 👋✨

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and that's the page, bestie!! mwah 💋 this lil gem came from ./drivers/mailbox, dated October 2026 — iconic of it, honestly. go forth and defer your processing responsibly 🧚‍♀️💜