qdio_add_bu...output_queue(9)

✨ qdio_add_bu...output_queue(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this is the page for qdio_add_bu...output_queue(9) and honestly? it's giving "niche s390 legend" and i'm obsessed 🦋

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🌸 NAME 🌸

qdio_add_bufs_to_output_queue — process buffers on an Output Queue 💅

like, it's literally the girl that handles pushing your buffers onto an Output Queue, no cap ✨

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🎀 SYNOPSIS 🎀

int qdio_add_bufs_to_output_queue (struct ccw_device *cdev , unsigned
int q_nr , unsigned int bufnr , unsigned int count , struct qaob *aob );

copy it exactly bestie, don't be cute with the spacing, the compiler does NOT find it funny 😭

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🫶 ARGUMENTS 🫶

• cdev — the associated ccw_device for the qdio subchannel 💫 like, this is the device your whole operation rides with
• q_nr — queue number 🔢 which queue we're talking about, queen
• bufnr — buffer number 🎯 which buffer, specifically
• count — how many buffers to process 🌈 one, ten, a girlboss amount, up to you
• aob — asynchronous operation block ⭐ the async bookkeeping bestie, the struct qaob * that keeps track of the whole vibe while things happen off your thread

ngl the arguments section is short but every single one of them matters, don't skip a single one 🙈

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🧚 SEE ALSO 🧚

the kernel file ./drivers/s390/cio/qdio_main.c is home base, and then the whole friend group shows up:

• do_siga_output(9)
• qdio_do_eqbs(9)
• qdio_do_sqbs(9)
• qdio_get_ssqd_desc(9)
• qdio_shutdown(9)
• qdio_free(9)
• qdio_allocate(9)
• qdio_establish(9)
• qdio_activate(9)
• handle_inbound(9)
• qdio_add_bufs_to_input_queue(9) — yes she has a sister 💜
• handle_outbound(9)
• qdio_start_irq(9)
• qdio_stop_irq(9)

like it's a whole group chat and every one of them is iconic in her own way 👑

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and that's the page bestie, go forth and process those buffers ✨💖

— cute sign-off from ./drivers/s390/cio 💅, October 2026 🎀🦋