pcc_startup(9)

✨ NAME ✨

okay so bestie, welcome to pcc_startup(9) from the Kernel API Manual 💅. This function is called from Mailbox Controller code — and literally the whole point here is to request the interrupt. no cap, that's the vibe 🫶

🌸 SYNOPSIS 🌸

int pcc_startup (struct mbox_chan *chan );

🎀 ARGUMENTS 🎀

• chan — pointer to the Mailbox channel you're starting up. main character pointer energy, honestly ✨

🦋 RETURN 🦋

Returns Err if something failed 😭 — otherwise it's 0 for success 🎉 periodt.

💜 SEE ALSO 💜

The kernel file ./drivers/mailbox/pcc.c is right there, and these besties are all linked up:

• struct pcc_chan_reg(9)
• struct pcc_chan_info(9)
• pcc_map_interrupt(9)
• pcc_mbox_irq(9)
• pcc_mbox_request_channel(9)
• pcc_mbox_free_channel(9)
• pcc_send_data(9)
• pcc_shutdown(9)
• parse_pcc_subspace(9)
• pcc_parse_subspace_irq(9)
• pcc_parse_subspace_db_reg(9)
• pcc_parse_subspace_shmem(9)
• acpi_pcc_probe(9)
• pcc_mbox_probe(9)

xoxo, this page is from source/version ./drivers/mailbox, dated October 2026, and it's literally pcc_startup(9) 💖🎀✨