struct irq

struct irq_chip
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Name

struct irq_chip — hardware interrupt chip descriptor

Synopsis

struct irq_chip {
  const char * name;
  unsigned int	(* startup) (unsigned int irq);
  void (* shutdown) (unsigned int irq);
  void (* enable) (unsigned int irq);
  void (* disable) (unsigned int irq);
  void (* ack) (unsigned int irq);
  void (* mask) (unsigned int irq);
  void (* mask_ack) (unsigned int irq);
  void (* unmask) (unsigned int irq);
  void (* eoi) (unsigned int irq);
  void (* end) (unsigned int irq);
  void (* set_affinity) (unsigned int irq, cpumask_t dest);
  int (* retrigger) (unsigned int irq);
  int (* set_type) (unsigned int irq, unsigned int flow_type);
  int (* set_wake) (unsigned int irq, unsigned int on);
#ifdef CONFIG_IRQ_RELEASE_METHOD
  void (* release) (unsigned int irq, void *dev_id);
#endif
  const char * typename;
};

Members

name: name for /proc/interrupts
startup: start up the interrupt (defaults to ->enable if NULL)
shutdown: shut down the interrupt (defaults to ->disable if NULL)
enable: enable the interrupt (defaults to chip->unmask if NULL)
disable: disable the interrupt (defaults to chip->mask if NULL)
ack: start of a new interrupt
mask: mask an interrupt source
mask_ack: ack and mask an interrupt source
unmask: unmask an interrupt source
eoi: end of interrupt - chip level
end: end of interrupt - flow level
set_affinity: set the CPU affinity on SMP machines
retrigger: resend an IRQ to the CPU
set_type: set the flow type (IRQ_TYPE_LEVEL/etc.) of an IRQ
set_wake: enable/disable power-management wake-on of an IRQ
release: release function solely used by UML
typename: obsoleted by name, kept as migration helper