devm_irq_setup_generic_chip(9)

💖 devm_irq_setup_generic_chip(9) 💖

okay bestie, so this is a page from the Kernel API Manual — yes, the kernel, that big scary thing — and honestly? It's not that deep once we break it down. Sit with me. 🫶

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✨ NAME ✨

devm_irq_setup_generic_chip — Setup a range of interrupts with a generic chip for a managed device. that's the whole vibe. ✨

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🌸 SYNOPSIS 🌸

int devm_irq_setup_generic_chip (struct device *dev , struct
irq_chip_generic *gc , u32 msk , enum irq_gc_flags flags , unsigned int
clr , unsigned int set );

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🎀 ARGUMENTS 🎀

• dev — the Device you're setting the generic chip up for. it's the main character here, lowkey. 👑
• gc — the Generic irq chip, and it is holding all data. literally all of it. everything lives here. 🧚
• msk — a Bitmask holding the irqs to initialize, relative to gc->irq_base. 🎯
• flags — the Flags for initialization. yes queen, tell us how you want it done 💅
• clr — the IRQ_* bits to clear 🧹
• set — the IRQ_* bits to set ✅

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🦋 DESCRIPTION 🦋

Set up max. 32 interrupts starting from gc->irq_base. that's the range, no cap beyond, well, the cap of 32. 😭

🚨 heads up bestie, and this is the important part: this initializes all interrupts to the primary irq_chip_type and its associated handler. not some of them. all of them. the primary one. its handler. that's the assignment, periodt. 💀

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🌈 SEE ALSO 🌈

Kernel file ./kernel/irq/devres.c — go read it, iykyk 📖

• devm_request_threaded_irq(9)
• devm_request_any_context_irq(9)
• devm_free_irq(9)
• __devm_irq_alloc_descs(9)
• devm_irq_alloc_generic_chip(9)
• devm_irq_domain_instantiate(9)

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okay that's the whole page, you ate that honestly 🍓💜

mwah 💋 — sourced from ./kernel/irq, October 2026, and yes that's the version-and-date situation, don't @ me. byeee 🎀