rio_setup_inb_dbell(9)

💅 rio_setup_inb_dbell — kernel API manual, but make it make sense

Okay so bestie, we're in the rio_setup_inb_dbell(9) page today — it's a kernel API manual entry, and honestly it's a whole little vibe. Sit down, grab a strawberry drink 🍓, and let's get into it.

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✨ NAME ✨

rio_setup_inb_dbell — bind inbound doorbell callback 🎀

Like, you're literally setting up the thing that goes ding dong when a message shows up. That's the whole gig.

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🌸 SYNOPSIS 🌸

int rio_setup_inb_dbell (struct rio_mport *mport , void *dev_id , struct
resource *res , void (*dinb) (struct rio_mport * mport, void *dev_id,
u16 src, u16 dst, u16 info) );

Not me putting the signature in a code block so nothing gets typo'd 😭 copy it exactly, she's precise.

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💖 ARGUMENTS 💖

• mport — the RIO master port you're binding this doorbell callback to. This is the main character port, okay?
• dev_id — a device-specific pointer, and it gets passed along on the event. It's like a little name tag so the callback knows who sent it 🫶
• res — the doorbell message resource. Yep, that's the resource in question.
• dinb — the callback to execute when the doorbell is received. This is the function that actually runs when someone rings your bell. Obsessed with her.

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🦋 DESCRIPTION 🦋

So here's the tea: rio_setup_inb_dbell adds a doorbell resource/callback pair into a port's doorbell event list. That's it, that's the whole job — one cute little pair, tucked into the list.

And it returns 0 if the request has been satisfied. Zero means slay. Zero means we ate. 💅

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🌈 SEE ALSO 🌈

Bestie, the see-also section is long, but we are not skipping a single one, no cap. Kernel file ./drivers/rapidio/rio.c and then, in order:

• rio_local_get_device_id(9)
• rio_query_mport(9)
• rio_alloc_net(9)
• rio_local_set_device_id(9)
• rio_add_device(9)
• rio_request_inb_mbox(9)
• rio_release_inb_mbox(9)
• rio_request_outb_mbox(9)
• rio_release_outb_mbox(9)
• rio_request_inb_dbell(9)
• rio_release_inb_dbell(9)
• rio_request_outb_dbell(9)
• rio_release_outb_dbell(9)
• rio_add_mport_pw_handler(9)
• rio_del_mport_pw_handler(9)
• rio_request_inb_pwrite(9)
• rio_release_inb_pwrite(9)
• rio_pw_enable(9)
• rio_map_inb_region(9)
• rio_unmap_inb_region(9)
• rio_map_outb_region(9)
• rio_unmap_outb_region(9)
• rio_mport_get_physefb(9)
• rio_get_comptag(9)
• rio_set_port_lockout(9)
• rio_enable_rx_tx_port(9)
• rio_chk_dev_route(9)
• rio_mport_chk_dev_access(9)
• rio_chk_dev_access(9)
• rio_get_input_status(9)
• rio_clr_err_stopped(9)
• rio_inb_pwrite_handler(9)
• rio_mport_get_efb(9)
• rio_mport_get_feature(9)
• rio_std_route_add_entry(9)
• rio_std_route_get_entry(9)
• rio_std_route_clr_table(9)
• rio_lock_device(9)
• rio_unlock_device(9)
• rio_route_add_entry(9)
• rio_route_get_entry(9)
• rio_route_clr_table(9)
• rio_request_mport_dma(9)
• rio_release_dma(9)
• rio_dma_prep_xfer(9)
• rio_register_scan(9)
• rio_mport_scan(9)

Forty-seven links, counted, accounted for, nobody left behind. 👑

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Fr fr though — this page has no warnings, no bugs section, no exit statuses hiding at the bottom. Just the args, the description, and the links. Clean. Iconic. No notes.

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Alright, that's the page! Signing off from ./drivers/rapidio — that's the source, dated October 2026, in the Kernel API Manual 💜 This has been your girl explaining rio_setup_inb_dbell(9), and yes, she returned 0, so the request has been satisfied. Periodt. ✨