We are going to list all default ISA IRQs. As all the definitions
are related, introduce the IsaIrqNumber type to enumerate them.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 include/hw/isa/isa.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/hw/isa/isa.h b/include/hw/isa/isa.h
index ddaae89a853..2a052ffa025 100644
--- a/include/hw/isa/isa.h
+++ b/include/hw/isa/isa.h
@@ -8,7 +8,9 @@
 #include "hw/qdev-core.h"
 #include "qom/object.h"
 
-#define ISA_NUM_IRQS 16
+enum IsaIrqNumber {
+    ISA_NUM_IRQS        = 16
+};
 
 #define TYPE_ISA_DEVICE "isa-device"
 OBJECT_DECLARE_TYPE(ISADevice, ISADeviceClass, ISA_DEVICE)
-- 
2.26.2