STRUCT 
IRQ_CHIP(9)						    Structures							STRUCT IRQ_CHIP(9)

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);
	 int (* set_affinity) (unsigned int irq,const struct cpumask *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);
	 void (* bus_lock) (unsigned int irq);
	 void (* bus_sync_unlock) (unsigned int irq);
       #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

       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

       bus_lock
	   function to lock access to slow bus (i2c) chips

       bus_sync_unlock
	   function to sync and unlock slow bus (i2c) chips

       release
	   release function solely used by UML

       typename
	   obsoleted by name, kept as migration helper

AUTHORS

       Thomas Gleixner <tglx@linutronix.de>
	   Author.

       Ingo Molnar <mingo@elte.hu>
	   Author.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010							STRUCT IRQ_CHIP(9)