mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2024-12-25 08:02:32 +00:00
fstools: media change detection (eg:sdcard) using kernel polling
Linux kernel has a polling mechanism that can be activated by changing the parameter /sys/module/block/parameters/events_dfl_poll_msecs which is deactivated by default or the /sys/block/[device]/events_poll_msecs for one device. This patch set the events_poll_msecs when a disk is inserted. Once the media disk change event is sent by the kernel then we force a re-read of the devices using /sbin/block info. With this patch, insertion and ejection of sd card will automatically generate partition devices in /dev. Signed-off-by: Matthias Badaire <mbadaire@gmail.com> [rewrap commit message, fix bashisms, fix non-matching condition, bump pkg release] Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
parent
5a89eea8e4
commit
cf8483cb4f
@ -8,7 +8,7 @@
|
||||
include $(TOPDIR)/rules.mk
|
||||
|
||||
PKG_NAME:=fstools
|
||||
PKG_RELEASE:=3
|
||||
PKG_RELEASE:=4
|
||||
|
||||
PKG_SOURCE_PROTO:=git
|
||||
PKG_SOURCE_URL=$(PROJECT_GIT)/project/fstools.git
|
||||
@ -110,6 +110,7 @@ define Package/block-mount/install
|
||||
$(INSTALL_BIN) ./files/fstab.init $(1)/etc/init.d/fstab
|
||||
$(INSTALL_CONF) ./files/fstab.default $(1)/etc/uci-defaults/10-fstab
|
||||
$(INSTALL_CONF) ./files/mount.hotplug $(1)/etc/hotplug.d/block/10-mount
|
||||
$(INSTALL_CONF) ./files/media-change.hotplug $(1)/etc/hotplug.d/block/00-media-change
|
||||
|
||||
$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/block $(1)/sbin/
|
||||
$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libblkid-tiny.so $(1)/lib/
|
||||
|
8
package/system/fstools/files/media-change.hotplug
Normal file
8
package/system/fstools/files/media-change.hotplug
Normal file
@ -0,0 +1,8 @@
|
||||
[ -n "$DISK_MEDIA_CHANGE" ] && /sbin/block info
|
||||
|
||||
if [ "$ACTION" = "add" -a "$DEVTYPE" = "disk" ]; then
|
||||
case "$DEVNAME" in
|
||||
mtd*) : ;;
|
||||
*) echo 2000 > /sys/block/$DEVNAME/events_poll_msecs ;;
|
||||
esac
|
||||
fi
|
Loading…
Reference in New Issue
Block a user