projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| ecb3f394 CG |
1 | What: /sys/kernel/irq |
| 2 | Date: September 2016 | |
| 3 | KernelVersion: 4.9 | |
| 4 | Contact: Craig Gallek <kraig@google.com> | |
| 5 | Description: 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/interrupts | |
| 8 | but in a more machine-friendly format. This directory contains | |
| 9 | one subdirectory for each Linux IRQ number. | |
| 10 | ||
| 11 | What: /sys/kernel/irq/<irq>/actions | |
| 12 | Date: September 2016 | |
| 13 | KernelVersion: 4.9 | |
| 14 | Contact: Craig Gallek <kraig@google.com> | |
| 15 | Description: The IRQ action chain. A comma-separated list of zero or more | |
| 16 | device names associated with this interrupt. | |
| 17 | ||
| 18 | What: /sys/kernel/irq/<irq>/chip_name | |
| 19 | Date: September 2016 | |
| 20 | KernelVersion: 4.9 | |
| 21 | Contact: Craig Gallek <kraig@google.com> | |
| 22 | Description: Human-readable chip name supplied by the associated device | |
| 23 | driver. | |
| 24 | ||
| 25 | What: /sys/kernel/irq/<irq>/hwirq | |
| 26 | Date: September 2016 | |
| 27 | KernelVersion: 4.9 | |
| 28 | Contact: Craig Gallek <kraig@google.com> | |
| 29 | Description: When interrupt translation domains are used, this file contains | |
| 30 | the underlying hardware IRQ number used for this Linux IRQ. | |
| 31 | ||
| 32 | What: /sys/kernel/irq/<irq>/name | |
| 33 | Date: September 2016 | |
| 34 | KernelVersion: 4.9 | |
| 35 | Contact: Craig Gallek <kraig@google.com> | |
| 36 | Description: Human-readable flow handler name as defined by the irq chip | |
| 37 | driver. | |
| 38 | ||
| 39 | What: /sys/kernel/irq/<irq>/per_cpu_count | |
| 40 | Date: September 2016 | |
| 41 | KernelVersion: 4.9 | |
| 42 | Contact: Craig Gallek <kraig@google.com> | |
| 43 | Description: The number of times the interrupt has fired since boot. This | |
| 44 | is a comma-separated list of counters; one per CPU in CPU id | |
| 45 | order. NOTE: This file consistently shows counters for all | |
| 46 | CPU ids. This differs from the behavior of /proc/interrupts | |
| 47 | which only shows counters for online CPUs. | |
| 48 | ||
| 49 | What: /sys/kernel/irq/<irq>/type | |
| 50 | Date: September 2016 | |
| 51 | KernelVersion: 4.9 | |
| 52 | Contact: Craig Gallek <kraig@google.com> | |
| 53 | Description: The type of the interrupt. Either the string 'level' or 'edge'. | |
| d61e2944 AS |
54 | |
| 55 | What: /sys/kernel/irq/<irq>/wakeup | |
| 56 | Date: March 2018 | |
| 57 | KernelVersion: 4.17 | |
| 58 | Contact: Andy Shevchenko <andriy.shevchenko@linux.intel.com> | |
| 59 | Description: The wakeup state of the interrupt. Either the string | |
| 60 | 'enabled' or 'disabled'. |