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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'. |