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-rw-r--r--src/devices/sound/ics2115.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/devices/sound/ics2115.h b/src/devices/sound/ics2115.h
index 78bc7e510c2..199b35b4929 100644
--- a/src/devices/sound/ics2115.h
+++ b/src/devices/sound/ics2115.h
@@ -15,6 +15,9 @@
class ics2115_device : public device_t, public device_sound_interface
{
public:
+ static constexpr feature_type imperfect_features() { return feature::SOUND; } // Incorrect/Unverified interrupt, interpolation;
+ // current ramping behavior is seems like incorrect?
+
// construction/destruction
ics2115_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);