'\" t
.\"     Title: struct irq_chip
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Structures
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "STRUCT IRQ_CHIP" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Structures"
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.SH "NAME"
struct_irq_chip \- hardware interrupt chip descriptor
.SH "SYNOPSIS"
.sp
.nf
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_calc_mask) (struct irq_data *data);
  void (* irq_print_chip) (struct irq_data *data, struct seq_file *p);
  int (* irq_request_resources) (struct irq_data *data);
  void (* irq_release_resources) (struct irq_data *data);
  unsigned long flags;
};  
.fi
.SH "MEMBERS"
.PP
name
.RS 4
name for /proc/interrupts
.RE
.PP
irq_startup
.RS 4
start up the interrupt (defaults to \->enable if NULL)
.RE
.PP
irq_shutdown
.RS 4
shut down the interrupt (defaults to \->disable if NULL)
.RE
.PP
irq_enable
.RS 4
enable the interrupt (defaults to chip\->unmask if NULL)
.RE
.PP
irq_disable
.RS 4
disable the interrupt
.RE
.PP
irq_ack
.RS 4
start of a new interrupt
.RE
.PP
irq_mask
.RS 4
mask an interrupt source
.RE
.PP
irq_mask_ack
.RS 4
ack and mask an interrupt source
.RE
.PP
irq_unmask
.RS 4
unmask an interrupt source
.RE
.PP
irq_eoi
.RS 4
end of interrupt
.RE
.PP
irq_set_affinity
.RS 4
set the CPU affinity on SMP machines
.RE
.PP
irq_retrigger
.RS 4
resend an IRQ to the CPU
.RE
.PP
irq_set_type
.RS 4
set the flow type (IRQ_TYPE_LEVEL/etc\&.) of an IRQ
.RE
.PP
irq_set_wake
.RS 4
enable/disable power\-management wake\-on of an IRQ
.RE
.PP
irq_bus_lock
.RS 4
function to lock access to slow bus (i2c) chips
.RE
.PP
irq_bus_sync_unlock
.RS 4
function to sync and unlock slow bus (i2c) chips
.RE
.PP
irq_cpu_online
.RS 4
configure an interrupt source for a secondary CPU
.RE
.PP
irq_cpu_offline
.RS 4
un\-configure an interrupt source for a secondary CPU
.RE
.PP
irq_suspend
.RS 4
function called from core code on suspend once per chip
.RE
.PP
irq_resume
.RS 4
function called from core code on resume once per chip
.RE
.PP
irq_pm_shutdown
.RS 4
function called from core code on shutdown once per chip
.RE
.PP
irq_calc_mask
.RS 4
Optional function to set irq_data\&.mask for special cases
.RE
.PP
irq_print_chip
.RS 4
optional to print special chip info in show_interrupts
.RE
.PP
irq_request_resources
.RS 4
optional to request resources before calling any other callback related to this irq
.RE
.PP
irq_release_resources
.RS 4
optional to release resources acquired with irq_request_resources
.RE
.PP
flags
.RS 4
chip specific flags
.RE
.SH "AUTHORS"
.PP
\fBThomas Gleixner\fR <\&tglx@linutronix.de\&>
.RS 4
Author.
.RE
.PP
\fBIngo Molnar\fR <\&mingo@elte.hu\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br