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Commit b6b76ba4 authored by Artem Bityutskiy's avatar Artem Bityutskiy
Browse files

UBI: add mtd_num sysfs attribute 



Expose number or the underlying MTD device in sysfs.

Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
parent d1f3dd6c

drivers/mtd/ubi/build.c

+9 −1
Original line number Diff line number Diff line
@@ -122,6 +122,8 @@ static struct device_attribute dev_min_io_size = 
	__ATTR(min_io_size, S_IRUGO, dev_attribute_show, NULL);

static struct device_attribute dev_bgt_enabled =

	__ATTR(bgt_enabled, S_IRUGO, dev_attribute_show, NULL);

static struct device_attribute dev_mtd_num =

	__ATTR(mtd_num, S_IRUGO, dev_attribute_show, NULL);



/**

 * ubi_get_device - get UBI device.
@@ -257,8 +259,10 @@ static ssize_t dev_attribute_show(struct device *dev, 
		ret = sprintf(buf, "%d\n", ubi->min_io_size);

	else if (attr == &dev_bgt_enabled)

		ret = sprintf(buf, "%d\n", ubi->thread_enabled);

	else if (attr == &dev_mtd_num)

		ret = sprintf(buf, "%d\n", ubi->mtd->index);

	else

		BUG();

		ret = -EINVAL;



	ubi_put_device(ubi);

	return ret;
@@ -314,6 +318,9 @@ static int ubi_sysfs_init(struct ubi_device *ubi) 
	if (err)

		return err;

	err = device_create_file(&ubi->dev, &dev_bgt_enabled);

	if (err)

		return err;

	err = device_create_file(&ubi->dev, &dev_mtd_num);

	return err;

}
@@ -323,6 +330,7 @@ static int ubi_sysfs_init(struct ubi_device *ubi) 
 */

static void ubi_sysfs_close(struct ubi_device *ubi)

{

	device_remove_file(&ubi->dev, &dev_mtd_num);

	device_remove_file(&ubi->dev, &dev_bgt_enabled);

	device_remove_file(&ubi->dev, &dev_min_io_size);

	device_remove_file(&ubi->dev, &dev_max_vol_count);