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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-12-26 13:46:46 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-12-26 19:15:17 +0200 |
| commit | b6b76ba466bbd47397efad0fdaeaa5ebf7d462c7 (patch) | |
| tree | 06af1b32c201abdc87bb852c5ba10c8acccaf9bc /drivers/mtd | |
| parent | d1f3dd6cc00f5bf744118fb2820ecdf09a1f4b73 (diff) | |
| download | op-kernel-dev-b6b76ba466bbd47397efad0fdaeaa5ebf7d462c7.zip op-kernel-dev-b6b76ba466bbd47397efad0fdaeaa5ebf7d462c7.tar.gz | |
UBI: add mtd_num sysfs attribute
Expose number or the underlying MTD device in sysfs.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 0ed8105..5098e6d 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -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); |
