struct irq_desc(9)
NAME
struct_irq_desc - interrupt descriptor
SYNOPSIS
struct irq_desc {
irq_flow_handler_t handle_irq;
struct irq_chip * chip;
struct msi_desc * msi_desc;
void * handler_data;
void * chip_data;
struct irqaction * action;
unsigned int status;
unsigned int depth;
unsigned int wake_depth;
unsigned int irq_count;
unsigned int irqs_unhandled;
unsigned long last_unhandled;
spinlock_t lock;
#ifdef CONFIG_SMP
cpumask_t affinity;
unsigned int cpu;
#endif
#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
cpumask_t pending_mask;
#endif
#ifdef CONFIG_PROC_FS
struct proc_dir_entry * dir;
#endif
const char * name;
};
MEMBERS
- handle_irq
- highlevel irq-events handler [if NULL, __do_IRQ]
- chip
- low level interrupt hardware access
- msi_desc
- MSI descriptor
- 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 - action
- the irq action chain
- status
- status information
- depth
- disable-depth, for nested irq_disable calls
- wake_depth
- enable depth, for multiple set_irq_wake callers
- irq_count
- stats field to detect stalled irqs
- irqs_unhandled
- stats field for spurious unhandled interrupts
- last_unhandled
- aging timer for unhandled count
- lock
- locking for SMP
- affinity
- IRQ affinity on SMP
- cpu
- cpu index useful for balancing
- pending_mask
- pending rebalanced interrupts
- dir
- /proc/irq/ procfs entry
- name
- flow handler name for /proc/interrupts output
AUTHORS
- Thomas Gleixner <tglx@linutronix.de>
- Author.
- Ingo Molnar <mingo@elte.hu>
- Author.