From: Bruno Pena <brunomp...@gmail.com>
Signed-off-by: Bruno Pena <brunomp...@gmail.com>
---
libfstools/mtd.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/libfstools/mtd.c b/libfstools/mtd.c
index 77c71ee..56dd1a9 100644
--- a/libfstools/mtd.c
+++ b/libfstools/mtd.c
@@ -36,20 +36,32 @@ struct mtd_volume {
static struct driver mtd_driver;
+static int mtd_open_device(const char *dev)
+{
+ int ret;
+
+ if ((ret = open(dev, O_RDWR | O_SYNC)) > -1)
+ ULOG_INFO("Opened mtd device: %s (read-write)\n", dev);
+ else if ((ret = open(dev, O_RDONLY)) > -1)
+ ULOG_INFO("Opened mtd device: %s (read-only)\n", dev);
+
+ return ret;
+}
+
static int mtd_open(const char *mtd, int block)
{
FILE *fp;
char dev[PATH_MAX];
- int i, ret, flags = O_RDWR | O_SYNC;
+ int i, ret;
if ((fp = fopen("/proc/mtd", "r"))) {
while (fgets(dev, sizeof(dev), fp)) {
if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
snprintf(dev, sizeof(dev), "/dev/mtd%s/%d",
(block ? "block" : ""), i);
- ret = open(dev, flags);
+ ret = mtd_open_device(dev);
if (ret < 0) {
snprintf(dev, sizeof(dev),
"/dev/mtd%s%d", (block ? "block" : ""), i);
- ret = open(dev, flags);
+ ret = mtd_open_device(dev);
}
fclose(fp);
return ret;
@@ -58,7 +70,7 @@ static int mtd_open(const char *mtd, int block)
fclose(fp);
}
- return open(mtd, flags);
+ return mtd_open_device(mtd);
}
static void mtd_volume_close(struct mtd_volume *p)
--
2.23.0
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