pci_check_and_unmask_intx(9) [centos man page]

PCI_CHECK_AND_UNMASK(9) 					Hardware Interfaces					   PCI_CHECK_AND_UNMASK(9)

NAME

       pci_check_and_unmask_intx - unmask INTx of no interrupt is pending

SYNOPSIS

       bool pci_check_and_unmask_intx(struct pci_dev * dev);

ARGUMENTS

       dev
	   the PCI device to operate on

DESCRIPTION

       Check if the device dev has its INTx line asserted, unmask it if not and return true. False is returned and the mask remains active if
       there was still an interrupt pending.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   PCI_CHECK_AND_UNMASK(9)

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 (* irq_startup) (struct irq_data *data);
	 void (* irq_shutdown) (struct irq_data *data);
	 void (* irq_enable) (struct irq_data *data);
	 void (* irq_disable) (struct irq_data *data);
	 void (* irq_ack) (struct irq_data *data);
	 void (* irq_mask) (struct irq_data *data);
	 void (* irq_mask_ack) (struct irq_data *data);
	 void (* irq_unmask) (struct irq_data *data);
	 void (* irq_eoi) (struct irq_data *data);
	 int (* irq_set_affinity) (struct irq_data *data, const struct cpumask *dest, bool force);
	 int (* irq_retrigger) (struct irq_data *data);
	 int (* irq_set_type) (struct irq_data *data, unsigned int flow_type);
	 int (* irq_set_wake) (struct irq_data *data, unsigned int on);
	 void (* irq_bus_lock) (struct irq_data *data);
	 void (* irq_bus_sync_unlock) (struct irq_data *data);
	 void (* irq_cpu_online) (struct irq_data *data);
	 void (* irq_cpu_offline) (struct irq_data *data);
	 void (* irq_suspend) (struct irq_data *data);
	 void (* irq_resume) (struct irq_data *data);
	 void (* irq_pm_shutdown) (struct irq_data *data);
	 void (* irq_print_chip) (struct irq_data *data, struct seq_file *p);
	 unsigned long flags;
       };

MEMBERS

       name
	   name for /proc/interrupts

       irq_startup
	   start up the interrupt (defaults to ->enable if NULL)

       irq_shutdown
	   shut down the interrupt (defaults to ->disable if NULL)

       irq_enable
	   enable the interrupt (defaults to chip->unmask if NULL)

       irq_disable
	   disable the interrupt

       irq_ack
	   start of a new interrupt

       irq_mask
	   mask an interrupt source

       irq_mask_ack
	   ack and mask an interrupt source

       irq_unmask
	   unmask an interrupt source

       irq_eoi
	   end of interrupt

       irq_set_affinity
	   set the CPU affinity on SMP machines

       irq_retrigger
	   resend an IRQ to the CPU

       irq_set_type
	   set the flow type (IRQ_TYPE_LEVEL/etc.) of an IRQ

       irq_set_wake
	   enable/disable power-management wake-on of an IRQ

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

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

       irq_cpu_online
	   configure an interrupt source for a secondary CPU

       irq_cpu_offline
	   un-configure an interrupt source for a secondary CPU

       irq_suspend
	   function called from core code on suspend once per chip

       irq_resume
	   function called from core code on resume once per chip

       irq_pm_shutdown
	   function called from core code on shutdown once per chip

       irq_print_chip
	   optional to print special chip info in show_interrupts

       flags
	   chip specific flags

AUTHORS

       Thomas Gleixner <tglx@linutronix.de>
	   Author.

       Ingo Molnar <mingo@elte.hu>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							STRUCT IRQ_CHIP(9)