disable_irq(9) [suse man page]

DISABLE_IRQ(9)							Hardware Interfaces						    DISABLE_IRQ(9)

NAME

       disable_irq - disable an irq and wait for completion

SYNOPSIS

       void disable_irq(unsigned int irq);

ARGUMENTS

       irq
	   Interrupt to disable

DESCRIPTION

       Disable the selected interrupt line. Enables and Disables are nested. This function waits for any pending IRQ handlers for this interrupt
       to complete before returning. If you use this function while holding a resource the IRQ handler may need you will deadlock.

       This function may be called - with care - from IRQ context.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010							    DISABLE_IRQ(9)

STRUCT 
IRQ_DATA(9)						    Structures							STRUCT IRQ_DATA(9)

NAME

       struct_irq_data - per irq and irq chip data passed down to chip functions

SYNOPSIS

       struct irq_data {
	 unsigned int irq;
	 unsigned long hwirq;
	 unsigned int node;
	 unsigned int state_use_accessors;
	 struct irq_chip * chip;
	 struct irq_domain * domain;
	 void * handler_data;
	 void * chip_data;
	 struct msi_desc * msi_desc;
	 cpumask_var_t affinity;
       };

MEMBERS

       irq
	   interrupt number

       hwirq
	   hardware interrupt number, local to the interrupt domain

       node
	   node index useful for balancing

       state_use_accessors
	   status information for irq chip functions. Use accessor functions to deal with it

       chip
	   low level interrupt hardware access

       domain
	   Interrupt translation domain; responsible for mapping between hwirq number and linux irq number.

       handler_data
	   per-IRQ data for the irq_chip methods

       chip_data
	   platform-specific per-chip private data for the chip methods, to allow shared chip implementations

       msi_desc
	   MSI descriptor

       affinity
	   IRQ affinity on SMP

DESCRIPTION

       The fields here need to overlay the ones in irq_desc until we cleaned up the direct references and switched everything over to irq_data.

AUTHORS

       Thomas Gleixner <tglx@linutronix.de>
	   Author.

       Ingo Molnar <mingo@elte.hu>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							STRUCT IRQ_DATA(9)