| What: /sys/kernel/irq | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| 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/<irq>/actions | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| Description: The IRQ action chain. A comma-separated list of zero or more | |
| device names associated with this interrupt. | |
| What: /sys/kernel/irq/<irq>/chip_name | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| Description: Human-readable chip name supplied by the associated device | |
| driver. | |
| What: /sys/kernel/irq/<irq>/hwirq | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| Description: When interrupt translation domains are used, this file contains | |
| the underlying hardware IRQ number used for this Linux IRQ. | |
| What: /sys/kernel/irq/<irq>/name | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| Description: Human-readable flow handler name as defined by the irq chip | |
| driver. | |
| What: /sys/kernel/irq/<irq>/per_cpu_count | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| 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/<irq>/type | |
| Date: September 2016 | |
| KernelVersion: 4.9 | |
| Contact: Craig Gallek <kraig@google.com> | |
| Description: The type of the interrupt. Either the string 'level' or 'edge'. |