diff --git a/src/fs/otp.c b/src/fs/otp.c
index 6984e0b..07c765c 100644
--- a/src/fs/otp.c
+++ b/src/fs/otp.c
@@ -51,7 +51,7 @@ int otp_write_data(uint16_t row, uint8_t *data, uint16_t len) {
     return otp_write_data_mode(row, data, len, true);
 }
 
-static int otp_write_data_raw(uint16_t row, uint8_t *data, uint16_t len) {
+int otp_write_data_raw(uint16_t row, uint8_t *data, uint16_t len) {
     return otp_write_data_mode(row, data, len, false);
 }
 
@@ -60,6 +60,11 @@ uint8_t* otp_buffer(uint16_t row) {
     return (uint8_t *)p;
 }
 
+uint8_t* otp_buffer_raw(uint16_t row) {
+    volatile uint32_t *p = ((uint32_t *)(OTP_DATA_RAW_BASE + (row*4)));
+    return (uint8_t *)p;
+}
+
 bool is_empty_otp_buffer(uint16_t row, uint16_t len) {
     return is_empty_buffer(otp_buffer(row), len);
 }
diff --git a/src/fs/otp.h b/src/fs/otp.h
index 4833d60..67cf751 100644
--- a/src/fs/otp.h
+++ b/src/fs/otp.h
@@ -26,8 +26,10 @@
 #define OTP_KEY_1    OTP_TEST_ROW
 
 extern uint8_t* otp_buffer(uint16_t row);
+extern uint8_t* otp_buffer_raw(uint16_t row);
 extern bool is_empty_otp_buffer(uint16_t row, uint16_t len);
 extern int otp_write_data(uint16_t row, uint8_t *data, uint16_t len);
+extern int otp_write_data_raw(uint16_t row, uint8_t *data, uint16_t len);
 
 #elif defined(ESP_PLATFORM)