other versions
- stretch 4.9.168-1
REQUEST_PERCPU_IRQ(9) | Public Functions Provided | REQUEST_PERCPU_IRQ(9) |
NAME¶
request_percpu_irq - allocate a percpu interrupt lineSYNOPSIS¶
int request_percpu_irq(unsigned int irq, irq_handler_t handler, const char * devname, void __percpu * dev_id);
ARGUMENTS¶
irqInterrupt line to allocate
handler
Function to be called when the IRQ occurs.
devname
An ascii name for the claiming device
dev_id
A percpu cookie passed back to the handler function
DESCRIPTION¶
This call allocates interrupt resources and enables the interrupt on the local CPU. If the interrupt is supposed to be enabled on other CPUs, it has to be done on each CPU using enable_percpu_irq.Dev_id must be globally unique. It is a per-cpu variable, and the handler gets called with the interrupted CPU's instance of that variable.
AUTHORS¶
Thomas Gleixner <tglx@linutronix.de>Author.
Ingo Molnar <mingo@elte.hu>
Author.
COPYRIGHT¶
April 2019 | Kernel Hackers Manual 4.9. |