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-rw-r--r--apps/drivers/stm32/tone_alarm/tone_alarm.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/apps/drivers/stm32/tone_alarm/tone_alarm.cpp b/apps/drivers/stm32/tone_alarm/tone_alarm.cpp
index 5a0467197..bfde83cde 100644
--- a/apps/drivers/stm32/tone_alarm/tone_alarm.cpp
+++ b/apps/drivers/stm32/tone_alarm/tone_alarm.cpp
@@ -199,7 +199,7 @@ public:
virtual int init();
virtual int ioctl(file *filp, int cmd, unsigned long arg);
- virtual int write(file *filp, const char *buffer, size_t len);
+ virtual ssize_t write(file *filp, const char *buffer, size_t len);
private:
static const unsigned _max_pattern = 6;