devm_irq_alloc_generic_chip(9)

💖 NAME 💖

okay bestie, welcome to the Kernel API Manual ✨ this page is all about devm_irq_alloc_generic_chip(9) — the function that will allocate and initialize a generic chip for a managed device 💅 it’s giving “setup fairy” energy, fr fr.

✨ SYNOPSIS ✨

struct irq_chip_generic * devm_irq_alloc_generic_chip (struct device
*dev , const char *name , int num_ct , unsigned int irq_base , void
__iomem *reg_base , irq_flow_handler_t handler );

🎀 ARGUMENTS 🎀

• dev — the device you’re allocating this generic chip for 🫶
• name — the name of the irq chip 🌸
• num_ct — number of irq_chip_type instances associated with this 💫
• irq_base — interrupt base nr for this chip 🔥
• reg_base — register base address (virtual) 🧚
• handler — default flow handler associated with this chip 👑

🦋 DESCRIPTION 🦋

It returns an initialized irq_chip_generic structure — yes bestie, it hands you back a whole set-up struct 😭💖. The chip defaults to the primary (index 0) irq_chip_type and handler. So that’s the starting vibe: primary type, index 0, default handler. Slay.

💜 SEE ALSO 💜

Go give these a lil read too, iykyk:

• Kernel file ./kernel/irq/devres.c
• devm_request_threaded_irq(9)
• devm_request_any_context_irq(9)
• devm_free_irq(9)
• __devm_irq_alloc_descs(9)
• devm_irq_setup_generic_chip(9)
• devm_irq_domain_instantiate(9)

mwah 💋 this page lives under ./kernel/irq, is dated October 2026, and its footer baddie is devm_irq_alloc_generic_chip(9). periodt 🌈