diff options
| author |  John W. Linville <linville@tuxdriver.com>
| 2012-02-15 16:24:37 -0500 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com>
| 2012-02-15 16:24:37 -0500 |
| commit | ca994a36f585432458ead9133fcfe05440edbb7b (patch) | |
| tree | be05512153a9cd5cbe1f1234bc09fd9cd388ec58 /Documentation/mmc/mmc-dev-parts.txt | |
| parent | rtlwifi: Modify rtl_pci_init to return 0 on success (diff) | |
| parent | ath9k: stop on rates with idx -1 in ath9k rate control's .tx_status (diff) | |
| download | linux-ca994a36f585432458ead9133fcfe05440edbb7b.tar.gz linux-ca994a36f585432458ead9133fcfe05440edbb7b.tar.bz2 linux-ca994a36f585432458ead9133fcfe05440edbb7b.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
net/mac80211/debugfs_sta.c
net/mac80211/sta_info.h
Diffstat (limited to 'Documentation/mmc/mmc-dev-parts.txt')
| -rw-r--r-- | Documentation/mmc/mmc-dev-parts.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/mmc/mmc-dev-parts.txt b/Documentation/mmc/mmc-dev-parts.txt index 2db28b8e662f..f08d078d43cf 100644 --- a/Documentation/mmc/mmc-dev-parts.txt +++ b/Documentation/mmc/mmc-dev-parts.txt @@ -25,3 +25,16 @@ echo 0 > /sys/block/mmcblkXbootY/force_ro To re-enable read-only access: echo 1 > /sys/block/mmcblkXbootY/force_ro + +The boot partitions can also be locked read only until the next power on, +with: + +echo 1 > /sys/block/mmcblkXbootY/ro_lock_until_next_power_on + +This is a feature of the card and not of the kernel. If the card does +not support boot partition locking, the file will not exist. If the +feature has been disabled on the card, the file will be read-only. + +The boot partitions can also be locked permanently, but this feature is +not accessible through sysfs in order to avoid accidental or malicious +bricking. |