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Diffstat (limited to 'meta/recipes-core/busybox/files/hwclock.sh')
| -rw-r--r-- | meta/recipes-core/busybox/files/hwclock.sh | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/meta/recipes-core/busybox/files/hwclock.sh b/meta/recipes-core/busybox/files/hwclock.sh new file mode 100644 index 0000000000..2e50425ba8 --- /dev/null +++ b/meta/recipes-core/busybox/files/hwclock.sh @@ -0,0 +1,82 @@ +#!/bin/sh +### BEGIN INIT INFO +# Provides: hwclock +# Required-Start: +# Required-Stop: $local_fs +# Default-Start: S +# Default-Stop: 0 6 +# Short-Description: Set system clock +# Description: Set system clock to hardware clock, according to the UTC +# setting in /etc/default/rcS (see also rcS(5)). +### END INIT INFO +# +# WARNING: If your hardware clock is not in UTC/GMT, this script +# must know the local time zone. This information is +# stored in /etc/localtime. This might be a problem if +# your /etc/localtime is a symlink to something in +# /usr/share/zoneinfo AND /usr isn't in the root +# partition! The workaround is to define TZ either +# in /etc/default/rcS, or in the proper place below. + +[ ! -x /sbin/hwclock ] && exit 0 + +. /etc/default/rcS + +case "$1" in + start) + if [ "$VERBOSE" != no ] + then + echo "System time was `date`." + echo "Setting the System Clock using the Hardware Clock as reference..." + fi + + if [ "$HWCLOCKACCESS" != no ] + then + if [ -z "$TZ" ] + then + hwclock --hctosys + else + TZ="$TZ" hwclock --hctosys + fi + fi + + if [ "$VERBOSE" != no ] + then + echo "System Clock set. System local time is now `date`." + fi + ;; + stop|restart|reload|force-reload) + # + # Updates the Hardware Clock with the System Clock time. + # This will *override* any changes made to the Hardware Clock. + # + # WARNING: If you disable this, any changes to the system + # clock will not be carried across reboots. + # + if [ "$VERBOSE" != no ] + then + echo "Saving the System Clock time to the Hardware Clock..." + fi + if [ "$HWCLOCKACCESS" != no ] + then + hwclock --systohc + fi + if [ "$VERBOSE" != no ] + then + echo "Hardware Clock updated to `date`." + fi + exit 0 + ;; + show) + if [ "$HWCLOCKACCESS" != no ] + then + hwclock --show + fi + ;; + *) + echo "Usage: hwclock.sh {start|stop|show|reload|restart}" >&2 + echo " start sets kernel (system) clock from hardware (RTC) clock" >&2 + echo " stop and reload set hardware (RTC) clock from kernel (system) clock" >&2 + exit 1 + ;; +esac |