diff --git a/avrrfm.c b/avrrfm.c
index 2080971..93c5093 100644
--- a/avrrfm.c
+++ b/avrrfm.c
@@ -308,7 +308,7 @@
  */
 static void transmitData(void) {
     uint8_t block[SD_BLOCK_SIZE];
-    bool read = readSingleBlock(0, block);
+    bool read = sdcReadSingleBlock(0, block);
     if (read) {
         void *start = █
         div_t packets = div(SD_BLOCK_SIZE, MESSAGE_SIZE);
@@ -338,7 +338,7 @@
         // used only for tx
         initWatchdog();
         initTimer();
-        sdcard = initSDCard();
+        sdcard = sdcInit();
     }
 
     // enable global interrupts
diff --git a/libsdc.a b/libsdc.a
index f25eea0..4be8a3a 100644
--- a/libsdc.a
+++ b/libsdc.a
Binary files differ
diff --git a/libsdc.h b/libsdc.h
index b277fa2..acb45f6 100644
--- a/libsdc.h
+++ b/libsdc.h
@@ -5,8 +5,8 @@
  * Created on 25.03.2025, 20:29
  */
 
-#ifndef SDCARD_H
-#define SDCARD_H
+#ifndef LIBSDC_H
+#define LIBSDC_H
 
 #include <stddef.h>
 #include <stdint.h>
@@ -95,7 +95,7 @@
  *
  * @return true on success, false otherwise
  */
-bool initSDCard(void);
+bool sdcInit(void);
 
 /**
  * Reads a single block of 512 bytes at the given address into
@@ -105,7 +105,7 @@
  * @param block 512 byte buffer
  * @return success
  */
-bool readSingleBlock(uint32_t address, uint8_t *block);
+bool sdcReadSingleBlock(uint32_t address, uint8_t *block);
 
 /**
  * Reads multiple blocks of 512 bytes starting at the given address
@@ -116,7 +116,7 @@
  * @param consume
  * @return success
  */
-bool readMultiBlock(uint32_t address, SDConsumer consume);
+bool sdcReadMultiBlock(uint32_t address, SDConsumer consume);
 
 /**
  * Writes a single block of 512 bytes starting at the given address
@@ -126,6 +126,6 @@
  * @param block 512 byte buffer
  * @return success
  */
-bool writeSingleBlock(uint32_t address, uint8_t *block);
+bool sdcWriteSingleBlock(uint32_t address, uint8_t *block);
 
-#endif /* SDCARD_H */
+#endif /* LIBSDC_H */