Top "Irq" questions

An interrupt request is a hardware signal sent to the processor that temporarily stops a running program and allows to handle a hardware event.

request_threaded_irq() is used in the driver why not request_irq()? What are the differences between two?

I posted this is the thread which discussed about request_threaded_irq but I did not get any reply. So …

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ixgbe: setting the number of RX/TX queues

I want to set the number of RX/TX queues used by an Intel 10G NIC. Let me explain why: …

networking linux-device-driver affinity nic irq
Timer interrupt on Raspberry Pi under Linux

Is it possible to set a hardware timer peripheral up on the Raspberry Pi and get an interrupt at a …

timer raspberry-pi interrupt irq
How CPU finds ISR and distinguishes between devices

I should first share all what I know - and that is complete chaos. There are several different questions on …

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What happens when two interrupts occur at the same time in linux kernel

What happens when two interrupts occur at the same time in the Linux kernel..? If that processor has more than …

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IRQ Handling from User Space Linux

I'm writting a driver for a synthesized device in an FPGA. The device has several IRQs and have requested them …

linux driver handler irq userspace
How /proc/interrupts gets updated?

I would like to know how /proc/interrupts is getting up to date? is it have only irq of drivers …

c linux linux-kernel irq
DCD instruction and IRQ stack

I'm studying the topic of setting up a stack for different modes of an ARM processor (IRQ, Supervisor, User, ...). Since …

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How to determine the IRQ number for a USB device?

I am new to driver development. However, I purchased an OSR USB FX2 Learning Kit, which comes with sample codes …

linux usb driver interrupt irq