What: /sys/kernel/irq Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: Directory containing information about the system's IRQs. Specifically, data from the associated struct irq_desc. The information here is similar to that in /proc/interrupts but in a more machine-friendly format. This directory contains one subdirectory for each Linux IRQ number. What: /sys/kernel/irq//actions Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: The IRQ action chain. A comma-separated list of zero or more device names associated with this interrupt. What: /sys/kernel/irq//chip_name Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: Human-readable chip name supplied by the associated device driver. What: /sys/kernel/irq//hwirq Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: When interrupt translation domains are used, this file contains the underlying hardware IRQ number used for this Linux IRQ. What: /sys/kernel/irq//name Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: Human-readable flow handler name as defined by the irq chip driver. What: /sys/kernel/irq//per_cpu_count Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: The number of times the interrupt has fired since boot. This is a comma-separated list of counters; one per CPU in CPU id order. NOTE: This file consistently shows counters for all CPU ids. This differs from the behavior of /proc/interrupts which only shows counters for online CPUs. What: /sys/kernel/irq//type Date: September 2016 KernelVersion: 4.9 Contact: Craig Gallek Description: The type of the interrupt. Either the string 'level' or 'edge'. What: /sys/kernel/irq//wakeup Date: March 2018 KernelVersion: 4.17 Contact: Andy Shevchenko Description: The wakeup state of the interrupt. Either the string 'enabled' or 'disabled'.