diff options
Diffstat (limited to 'include/linux/irq.h')
| -rw-r--r-- | include/linux/irq.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 69855b23dff..6f463606c31 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -372,6 +372,13 @@ set_irq_chained_handler(unsigned int irq, extern int create_irq(void); extern void destroy_irq(unsigned int irq); +/* Test to see if a driver has successfully requested an irq */ +static inline int irq_has_action(unsigned int irq) +{ + struct irq_desc *desc = irq_desc + irq; + return desc->action != NULL; +} + /* Dynamic irq helper functions */ extern void dynamic_irq_init(unsigned int irq); extern void dynamic_irq_cleanup(unsigned int irq); |