1 files changed, 55 insertions, 0 deletions
diff --git a/flash_info.c b/flash_info.c
new file mode 100644
index 0000000..7157b9e
--- /dev/null
+++ b/flash_info.c
@@ -0,0 +1,55 @@
+/*
+ * flash_info.c -- print info about a MTD device
+*/
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <time.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+
+#include <mtd/mtd-user.h>
+
+int main(int argc,char *argv[])
+{
+	int regcount;
+	int Fd;
+
+	if (1 >= argc)
+	{
+		fprintf(stderr,"Usage: flash_info device\n");
+		return 16;
+	}
+
+	// Open and size the device
+	if ((Fd = open(argv[1],O_RDONLY)) < 0)
+	{
+		fprintf(stderr,"File open error\n");
+		return 8;
+	}
+
+	if (ioctl(Fd,MEMGETREGIONCOUNT,&regcount) == 0)
+	{
+		int i;
+		region_info_t reginfo;
+		printf("Device %s has %d erase regions\n", argv[1], regcount);
+		for (i = 0; i < regcount; i++)
+		{
+			reginfo.regionindex = i;
+			if(ioctl(Fd, MEMGETREGIONINFO, &reginfo) == 0)
+			{
+				printf("Region %d is at 0x%x with size 0x%x and "
+				       "has 0x%x blocks\n", i, reginfo.offset,
+				       reginfo.erasesize, reginfo.numblocks);
+			}
+			else
+			{
+				printf("Strange can not read region %d from a %d region device\n",
+				       i, regcount);
+			}
+		}
+	}
+	return 0;
+}