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-rw-r--r--include/mmc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h
index f52df70..ee16349 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -47,6 +47,9 @@
#define MMC_MODE_SPI 0x400
#define MMC_MODE_HC 0x800
+#define MMC_MODE_MASK_WIDTH_BITS (MMC_MODE_4BIT | MMC_MODE_8BIT)
+#define MMC_MODE_WIDTH_BITS_SHIFT 8
+
#define SD_DATA_4BIT 0x00040000
#define IS_SD(x) (x->version & SD_VERSION_SD)