1 What: /sys/kernel/irq 1 What: /sys/kernel/irq
2 Date: September 2016 2 Date: September 2016
3 KernelVersion: 4.9 3 KernelVersion: 4.9
4 Contact: Craig Gallek <kraig@google.com> 4 Contact: Craig Gallek <kraig@google.com>
5 Description: Directory containing informati 5 Description: Directory containing information about the system's IRQs.
6 Specifically, data from the as 6 Specifically, data from the associated struct irq_desc.
7 The information here is simila 7 The information here is similar to that in /proc/interrupts
8 but in a more machine-friendly 8 but in a more machine-friendly format. This directory contains
9 one subdirectory for each Linu 9 one subdirectory for each Linux IRQ number.
10 10
11 What: /sys/kernel/irq/<irq>/actions 11 What: /sys/kernel/irq/<irq>/actions
12 Date: September 2016 12 Date: September 2016
13 KernelVersion: 4.9 13 KernelVersion: 4.9
14 Contact: Craig Gallek <kraig@google.com> 14 Contact: Craig Gallek <kraig@google.com>
15 Description: The IRQ action chain. A comma 15 Description: The IRQ action chain. A comma-separated list of zero or more
16 device names associated with t 16 device names associated with this interrupt.
17 17
18 What: /sys/kernel/irq/<irq>/chip_nam 18 What: /sys/kernel/irq/<irq>/chip_name
19 Date: September 2016 19 Date: September 2016
20 KernelVersion: 4.9 20 KernelVersion: 4.9
21 Contact: Craig Gallek <kraig@google.com> 21 Contact: Craig Gallek <kraig@google.com>
22 Description: Human-readable chip name suppl 22 Description: Human-readable chip name supplied by the associated device
23 driver. 23 driver.
24 24
25 What: /sys/kernel/irq/<irq>/hwirq 25 What: /sys/kernel/irq/<irq>/hwirq
26 Date: September 2016 26 Date: September 2016
27 KernelVersion: 4.9 27 KernelVersion: 4.9
28 Contact: Craig Gallek <kraig@google.com> 28 Contact: Craig Gallek <kraig@google.com>
29 Description: When interrupt translation dom 29 Description: When interrupt translation domains are used, this file contains
30 the underlying hardware IRQ nu 30 the underlying hardware IRQ number used for this Linux IRQ.
31 31
32 What: /sys/kernel/irq/<irq>/name 32 What: /sys/kernel/irq/<irq>/name
33 Date: September 2016 33 Date: September 2016
34 KernelVersion: 4.9 34 KernelVersion: 4.9
35 Contact: Craig Gallek <kraig@google.com> 35 Contact: Craig Gallek <kraig@google.com>
36 Description: Human-readable flow handler na 36 Description: Human-readable flow handler name as defined by the irq chip
37 driver. 37 driver.
38 38
39 What: /sys/kernel/irq/<irq>/per_cpu_ 39 What: /sys/kernel/irq/<irq>/per_cpu_count
40 Date: September 2016 40 Date: September 2016
41 KernelVersion: 4.9 41 KernelVersion: 4.9
42 Contact: Craig Gallek <kraig@google.com> 42 Contact: Craig Gallek <kraig@google.com>
43 Description: The number of times the interr 43 Description: The number of times the interrupt has fired since boot. This
44 is a comma-separated list of c 44 is a comma-separated list of counters; one per CPU in CPU id
45 order. NOTE: This file consis 45 order. NOTE: This file consistently shows counters for all
46 CPU ids. This differs from th 46 CPU ids. This differs from the behavior of /proc/interrupts
47 which only shows counters for 47 which only shows counters for online CPUs.
48 48
49 What: /sys/kernel/irq/<irq>/type 49 What: /sys/kernel/irq/<irq>/type
50 Date: September 2016 50 Date: September 2016
51 KernelVersion: 4.9 51 KernelVersion: 4.9
52 Contact: Craig Gallek <kraig@google.com> 52 Contact: Craig Gallek <kraig@google.com>
53 Description: The type of the interrupt. Ei 53 Description: The type of the interrupt. Either the string 'level' or 'edge'.
54 54
55 What: /sys/kernel/irq/<irq>/wakeup 55 What: /sys/kernel/irq/<irq>/wakeup
56 Date: March 2018 56 Date: March 2018
57 KernelVersion: 4.17 57 KernelVersion: 4.17
58 Contact: Andy Shevchenko <andriy.shevche 58 Contact: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
59 Description: The wakeup state of the interr 59 Description: The wakeup state of the interrupt. Either the string
60 'enabled' or 'disabled'. 60 'enabled' or 'disabled'.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.