diff --git a/src/flashcart/ed64/ed64.c b/src/flashcart/ed64/ed64.c
index 15824248..a6ae5e1c 100644
--- a/src/flashcart/ed64/ed64.c
+++ b/src/flashcart/ed64/ed64.c
@@ -16,7 +16,7 @@
 
 extern int ed_exit(void);
 
-static flashcart_error_t ed64_init (void) {
+static flashcart_err_t ed64_init (void) {
 
     // TODO: partly already done, see https://github.com/DragonMinded/libdragon/blob/4ec469d26b6dc4e308caf3d5b86c2b340b708bbd/src/libcart/cart.c#L1064
 
@@ -26,7 +26,7 @@ static flashcart_error_t ed64_init (void) {
     return FLASHCART_OK;
 }
 
-static flashcart_error_t ed64_deinit (void) {
+static flashcart_err_t ed64_deinit (void) {
 
     // For the moment, just use libCart exit.
     ed_exit();
@@ -34,12 +34,19 @@ static flashcart_error_t ed64_deinit (void) {
     return FLASHCART_OK;
 }
 
-static flashcart_error_t ed64_load_rom (char *rom_path, flashcart_progress_callback_t *progress) {
+static bool ed64_has_feature (flashcart_features_t feature) {
+    switch (feature) {
+        case FLASHCART_FEATURE_64DD: return false;
+        default: return false;
+    }
+}
+
+static flashcart_err_t ed64_load_rom (char *rom_path, flashcart_progress_callback_t *progress) {
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(rom_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     fix_file_size(&fil);
@@ -49,7 +56,7 @@ static flashcart_error_t ed64_load_rom (char *rom_path, flashcart_progress_callb
     // FIXME: if the cart is not V3 or X5 or X7, we need to - 128KiB
     if (rom_size > MiB(64) - KiB(128)) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
 
@@ -60,7 +67,7 @@ static flashcart_error_t ed64_load_rom (char *rom_path, flashcart_progress_callb
         size_t block_size = MIN(sdram_size - offset, chunk_size);
         if (f_read(&fil, (void *) (ROM_ADDRESS + offset), block_size, &br) != FR_OK) {
             f_close(&fil);
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
         if (progress) {
             progress(f_tell(&fil) / (float) (f_size(&fil)));
@@ -68,23 +75,23 @@ static flashcart_error_t ed64_load_rom (char *rom_path, flashcart_progress_callb
     }
     if (f_tell(&fil) != sdram_size) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t ed64_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
+static flashcart_err_t ed64_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(file_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     fix_file_size(&fil);
@@ -94,31 +101,31 @@ static flashcart_error_t ed64_load_file (char *file_path, uint32_t rom_offset, u
     // FIXME: if the cart is not V3 or X5 or X7, we need to - 128KiB
     if (file_size > (MiB(64) - KiB(128) - rom_offset)) {
         f_close(&fil);
-        return FLASHCART_ERROR_ARGS;
+        return FLASHCART_ERR_ARGS;
     }
 
     if (f_lseek(&fil, file_offset) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_read(&fil, (void *) (ROM_ADDRESS + rom_offset), file_size, &br) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
     if (br != file_size) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t ed64_load_save (char *save_path) {
+static flashcart_err_t ed64_load_save (char *save_path) {
     void *address =  NULL;
     ed64_save_type_t type = ed64_ll_get_save_type();
 
@@ -134,35 +141,35 @@ static flashcart_error_t ed64_load_save (char *save_path) {
             break;
         case SAVE_TYPE_NONE:
         default:
-            return FLASHCART_ERROR_ARGS;
+            return FLASHCART_ERR_ARGS;
     }
 
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(save_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     size_t save_size = f_size(&fil);
 
     if (f_read(&fil, address, save_size, &br) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (br != save_size) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t ed64_set_save_type (flashcart_save_type_t save_type) {
+static flashcart_err_t ed64_set_save_type (flashcart_save_type_t save_type) {
     ed64_save_type_t type;
 
     switch (save_type) {
@@ -187,7 +194,7 @@ static flashcart_error_t ed64_set_save_type (flashcart_save_type_t save_type) {
             type = SAVE_TYPE_FLASHRAM;
             break;
         default:
-            return FLASHCART_ERROR_ARGS;
+            return FLASHCART_ERR_ARGS;
     }
 
     ed64_ll_set_save_type(type);
@@ -199,9 +206,12 @@ static flashcart_error_t ed64_set_save_type (flashcart_save_type_t save_type) {
 static flashcart_t flashcart_ed64 = {
     .init = ed64_init,
     .deinit = ed64_deinit,
+    .has_feature = ed64_has_feature,
     .load_rom = ed64_load_rom,
     .load_file = ed64_load_file,
     .load_save = ed64_load_save,
+    .load_64dd_ipl = NULL,
+    .load_64dd_disk = NULL,
     .set_save_type = ed64_set_save_type,
     .set_save_writeback = NULL,
 };