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-rw-r--r--firmware/include/sprintf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/firmware/include/sprintf.h b/firmware/include/sprintf.h
index ecbbc8a..61a5f51 100644
--- a/firmware/include/sprintf.h
+++ b/firmware/include/sprintf.h
@@ -25,5 +25,6 @@
int snprintf (char *buf, size_t size, const char *fmt, ...);
int vsnprintf (char *buf, int size, const char *fmt, va_list ap);
+int fprintf (int fd, const char *fmt, ...);
#endif /* __SPRINTF_H__ */