struct irq

struct irq_data
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Name

struct irq_data — per irq chip data passed down to chip functions

Synopsis

struct irq_data {
  u32 mask;
  unsigned int irq;
  unsigned long hwirq;
  struct irq_common_data * common;
  struct irq_chip * chip;
  struct irq_domain * domain;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
  struct irq_data * parent_data;
#endif
  void * chip_data;
};

Members

mask: precomputed bitmask for accessing the chip registers
irq: interrupt number
hwirq: hardware interrupt number, local to the interrupt domain
common: point to data shared by all irqchips
chip: low level interrupt hardware access
domain: Interrupt translation domain; responsible for mapping between hwirq number and linux irq number.
parent_data: pointer to parent struct irq_data to support hierarchy irq_domain
chip_data: platform-specific per-chip private data for the chip methods, to allow shared chip implementations