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- What: /sys/kernel/irq
- Date: September 2016
- KernelVersion: 4.9
- Contact: Craig Gallek <[email protected]>
- 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 <[email protected]>
- 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 <[email protected]>
- 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 <[email protected]>
- 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 <[email protected]>
- 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 <[email protected]>
- 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 <[email protected]>
- Description: The type of the interrupt. Either the string 'level' or 'edge'.
- What: /sys/kernel/irq/<irq>/wakeup
- Date: March 2018
- KernelVersion: 4.17
- Contact: Andy Shevchenko <[email protected]>
- Description: The wakeup state of the interrupt. Either the string
- 'enabled' or 'disabled'.
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