2 files changed, 23 insertions, 0 deletions
diff --git a/include/kernel/string.h b/include/kernel/string.h
new file mode 100644
index 0000000..8761211
--- /dev/null
+++ b/include/kernel/string.h
@@ -0,0 +1,12 @@
+#ifndef STRING_H
+#define STRING_H
+
+#include <stddef.h>
+
+int memcmp(const void *str1, const void *str2, size_t n);
+void* memcpy(void* __restrict dest, const void* __restrict src, size_t n);
+void* memmove(void* __restrict dest, const void* __restrict src, size_t n);
+void* memset(void *str, int c, size_t n);
+size_t strlen(const char *str);
+
+#endif
diff --git a/include/kernel/tty.h b/include/kernel/tty.h
new file mode 100644
index 0000000..194b7c7
--- /dev/null
+++ b/include/kernel/tty.h
@@ -0,0 +1,11 @@
+#ifndef KERNEL_TTY
+#define KERNEL_TTY
+
+#include <stddef.h>
+
+void tty_init(void);
+void tty_putchar(char c);
+void tty_write(const char *data, size_t size);
+void tty_writestring(const char *data);
+
+#endif