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1What: /sys/kernel/irq2Date: September 20163KernelVersion: 4.94Contact: Craig Gallek <kraig@google.com>5Description: Directory containing information about the system's IRQs.6 Specifically, data from the associated struct irq_desc.7 The information here is similar to that in /proc/interrupts8 but in a more machine-friendly format. This directory contains9 one subdirectory for each Linux IRQ number.10 11What: /sys/kernel/irq/<irq>/actions12Date: September 201613KernelVersion: 4.914Contact: Craig Gallek <kraig@google.com>15Description: The IRQ action chain. A comma-separated list of zero or more16 device names associated with this interrupt.17 18What: /sys/kernel/irq/<irq>/chip_name19Date: September 201620KernelVersion: 4.921Contact: Craig Gallek <kraig@google.com>22Description: Human-readable chip name supplied by the associated device23 driver.24 25What: /sys/kernel/irq/<irq>/hwirq26Date: September 201627KernelVersion: 4.928Contact: Craig Gallek <kraig@google.com>29Description: When interrupt translation domains are used, this file contains30 the underlying hardware IRQ number used for this Linux IRQ.31 32What: /sys/kernel/irq/<irq>/name33Date: September 201634KernelVersion: 4.935Contact: Craig Gallek <kraig@google.com>36Description: Human-readable flow handler name as defined by the irq chip37 driver.38 39What: /sys/kernel/irq/<irq>/per_cpu_count40Date: September 201641KernelVersion: 4.942Contact: Craig Gallek <kraig@google.com>43Description: The number of times the interrupt has fired since boot. This44 is a comma-separated list of counters; one per CPU in CPU id45 order. NOTE: This file consistently shows counters for all46 CPU ids. This differs from the behavior of /proc/interrupts47 which only shows counters for online CPUs.48 49What: /sys/kernel/irq/<irq>/type50Date: September 201651KernelVersion: 4.952Contact: Craig Gallek <kraig@google.com>53Description: The type of the interrupt. Either the string 'level' or 'edge'.54 55What: /sys/kernel/irq/<irq>/wakeup56Date: March 201857KernelVersion: 4.1758Contact: Andy Shevchenko <andriy.shevchenko@linux.intel.com>59Description: The wakeup state of the interrupt. Either the string60 'enabled' or 'disabled'.61