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interrupt.txt

Guest on 6th August 2021 04:44:56 PM

  1. Interrupt chips
  2. ---------------
  3.  
  4. * Intel I/O Advanced Programmable Interrupt Controller (IO APIC)
  5.  
  6.   Required properties:
  7.   --------------------
  8.      compatible = "intel,ce4100-ioapic";
  9.      #interrupt-cells = <2>;
  10.  
  11.   Device's interrupt property:
  12.  
  13.      interrupts = <P S>;
  14.  
  15.   The first number (P) represents the interrupt pin which is wired to the
  16.   IO APIC. The second number (S) represents the sense of interrupt which
  17.   should be configured and can be one of:
  18.     0 - Edge Rising
  19.     1 - Level Low
  20.     2 - Level High
  21.     3 - Edge Falling
  22.  
  23. * Local APIC
  24.   Required property:
  25.  
  26.      compatible = "intel,ce4100-lapic";

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