sdio_claim_irq(9)

okay so bestie, this is sdio_claim_irq(9) from the Kernel API Manual — the one where we claim the IRQ for a SDIO function, and it's lowkey iconic 💅✨

🌸 NAME 🌸

sdio_claim_irq — claim the IRQ for a SDIO function 🎀

✨ SYNOPSIS ✨

int sdio_claim_irq (struct sdio_func *func , sdio_irq_handler_t *handler
);

💅 ARGUMENTS 💅

• func — the SDIO function, aka the main character whose IRQ we're claiming 🫶
• handler — the IRQ handler callback, the function that gets called when the IRQ is asserted ✨

🦋 DESCRIPTION 🦋

So the vibe is: claim and activate the IRQ for the given SDIO function. Once that's happening, the provided handler will be called when that IRQ is asserted. 💖

Big important note, bestie: the host is always claimed already when the handler is called, so the handler should not call sdio_claim_host or sdio_release_host. Like, do not do it — the host is already handled, no cap. 😭

🌈 SEE ALSO 🌈

• Kernel file ./drivers/mmc/core/sdio_irq.c 🍓
• sdio_release_irq(9) 💜

and that's the tea: this page comes from the source path ./drivers/mmc/core, dated October 2026, and it's sdio_claim_irq(9) from the Kernel API Manual — periodt 💅🫶