From: Benjamin Herrenschmidt Add a #define for the mask of the part of IRQ_TYPE that represents the trigger type. I use that in my in-progress work as I've standardized the way the irq description in the firmware device-tree get translated to linux useable things by using those constants. Having this mask to isolate the "trigger type" part of the flags is useful in a few places. Signed-off-by: Benjamin Herrenschmidt Acked-by: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Andrew Morton --- include/linux/irq.h | 1 + 1 file changed, 1 insertion(+) diff -puN include/linux/irq.h~genirq-add-irq_type_sense_mask include/linux/irq.h --- a/include/linux/irq.h~genirq-add-irq_type_sense_mask +++ a/include/linux/irq.h @@ -55,6 +55,7 @@ #define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING) #define IRQ_TYPE_LEVEL_HIGH 0x0004 /* Level high type */ #define IRQ_TYPE_LEVEL_LOW 0x0008 /* Level low type */ +#define IRQ_TYPE_SENSE_MASK 0x000f /* Mask of the above */ #define IRQ_TYPE_SIMPLE 0x0010 /* Simple type */ #define IRQ_TYPE_PERCPU 0x0020 /* Per CPU type */ #define IRQ_TYPE_PROBE 0x0040 /* Probing in progress */ _