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/*
* flash_info.c -- print info about a MTD device
*/
#define PROGRAM_NAME "flash_info"
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <time.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include "common.h"
#include <mtd/mtd-user.h>
static void usage(int status)
{
fprintf(status ? stderr : stdout,
"Usage: %s <device>\n",
PROGRAM_NAME);
exit(status);
}
int main(int argc, char *argv[])
{
int regcount;
int fd;
if (argc < 2)
usage(1);
if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
usage(0);
/* Open and size the device */
fd = open(argv[1], O_RDONLY);
if (fd < 0)
sys_errmsg_die("could not open: %s", argv[1]);
if (ioctl(fd, MEMGETREGIONCOUNT, ®count) == 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, ®info) == 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 {
warnmsg("can not read region %d from a %d region device",
i, regcount);
}
}
}
return 0;
}
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