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authorJosh Rahm <joshuarahm@gmail.com>2019-01-02 23:08:37 -0700
committerJosh Rahm <joshuarahm@gmail.com>2019-01-03 21:23:46 -0700
commit33a15696519e161cd823baaf4214d1ed452a410a (patch)
treee3491b0b7b7c570b36c1e4c5235e2d026c651b2c /03-refactor/include/printf.h
parent109cdf120ea85f46d664e77c44ea2a311fd49ba2 (diff)
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Add primitive printf functionality to the USART.
Diffstat (limited to '03-refactor/include/printf.h')
-rw-r--r--03-refactor/include/printf.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/03-refactor/include/printf.h b/03-refactor/include/printf.h
new file mode 100644
index 0000000..ec3eec0
--- /dev/null
+++ b/03-refactor/include/printf.h
@@ -0,0 +1,15 @@
+#ifndef PRINTF_H_
+#define PRINTF_H_
+
+#include <stdarg.h>
+#include <stdlib.h>
+
+typedef void(*printf_callback_t)(volatile void*, char);
+
+void printf_format(
+ const char* fmt,
+ printf_callback_t callback,
+ volatile void* callback_closure,
+ va_list lst);
+
+#endif /* PRINTF_H_ */