diff --git a/libscsi/Makefile b/libscsi/Makefile
index dc55593..86b835d 100644
--- a/libscsi/Makefile
+++ b/libscsi/Makefile
@@ -9,7 +9,7 @@ CPPFLAGS = -I$(TOP)/../libmacos -DARCH_M68K
 LIBRARY = libscsi.a
 
 SOURCES = scsi_read_sector.c scsi_command.c scsi_INQUIRY.c scsi_READ.c \
-	  scsi_open.c scsi_close.c scsi_READ_CAPACITY.c
+	  scsi_open.c scsi_close.c scsi_READ_CAPACITY.c scsi_get_blocksize.c
 
 HEADERS = libscsi.h
 
diff --git a/libscsi/libscsi.h b/libscsi/libscsi.h
index e24e76b..1e5be20 100644
--- a/libscsi/libscsi.h
+++ b/libscsi/libscsi.h
@@ -22,3 +22,4 @@ extern int scsi_READ_CAPACITY(int target, char *buffer, size_t count);
 extern scsi_device_t *scsi_open(int target);
 extern int scsi_read_sector(scsi_device_t *device, off_t offset, void* buffer, size_t size);
 extern int scsi_close(scsi_device_t *device);
+extern int scsi_get_blocksize(scsi_device_t *device);
diff --git a/libscsi/scsi_get_blocksize.c b/libscsi/scsi_get_blocksize.c
new file mode 100644
index 0000000..b621535
--- /dev/null
+++ b/libscsi/scsi_get_blocksize.c
@@ -0,0 +1,12 @@
+/*
+ *
+ * (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+#include "libscsi.h"
+
+int scsi_get_blocksize(scsi_device_t *device)
+{
+	return device->sector_size;
+}