diff options
Diffstat (limited to 'beagle/debian-rfs/etc/init.d/hwclock.sh')
| -rwxr-xr-x | beagle/debian-rfs/etc/init.d/hwclock.sh | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/beagle/debian-rfs/etc/init.d/hwclock.sh b/beagle/debian-rfs/etc/init.d/hwclock.sh new file mode 100755 index 0000000..d500287 --- /dev/null +++ b/beagle/debian-rfs/etc/init.d/hwclock.sh @@ -0,0 +1,171 @@ +#!/bin/sh +# hwclock.sh Set and adjust the CMOS clock, according to the UTC +# setting in /etc/default/rcS (see also rcS(5)). +# +# Version: @(#)hwclock.sh 2.00 14-Dec-1998 miquels@cistron.nl +# +# Patches: +# 2000-01-30 Henrique M. Holschuh <hmh@rcm.org.br> +# - Minor cosmetic changes in an attempt to help new +# users notice something IS changing their clocks +# during startup/shutdown. +# - Added comments to alert users of hwclock issues +# and discourage tampering without proper doc reading. + +# WARNING: Please read /usr/share/doc/util-linux/README.Debian.hwclock +# before changing this file. You risk serious clock +# misbehaviour otherwise. + +### BEGIN INIT INFO +# Provides: hwclock +# Required-Start: checkroot +# Required-Stop: $local_fs +# Default-Start: S +# Default-Stop: 0 6 +### END INIT INFO + +FIRST=no # debian/rules sets this to 'yes' when creating hwclockfirst.sh + +# Set this to any options you might need to give to hwclock, such +# as machine hardware clock type for Alphas. +HWCLOCKPARS= + +# Set this to the hardware clock device you want to use, it should +# probably match the CONFIG_RTC_HCTOSYS_DEVICE kernel config option. +HCTOSYS_DEVICE=rtc0 + +hwclocksh() +{ + [ ! -x /sbin/hwclock ] && return 0 + [ ! -r /etc/default/rcS ] || . /etc/default/rcS + + . /lib/lsb/init-functions + verbose_log_action_msg() { [ "$VERBOSE" = no ] || log_action_msg "$@"; } + + [ "$GMT" = "-u" ] && UTC="yes" + case "$UTC" in + no|"") GMT="--localtime" + UTC="" + if [ "X$FIRST" = "Xyes" ] && [ ! -r /etc/localtime ]; then + if [ -z "$TZ" ]; then + log_action_msg "System clock was not updated at this time" + return 1 + fi + fi + ;; + yes) GMT="--utc" + UTC="--utc" + ;; + *) log_action_msg "Unknown UTC setting: \"$UTC\""; return 1 ;; + esac + + case "$BADYEAR" in + no|"") BADYEAR="" ;; + yes) BADYEAR="--badyear" ;; + *) log_action_msg "unknown BADYEAR setting: \"$BADYEAR\""; return 1 ;; + esac + + case "$1" in + start) + if [ -d /dev/.udev ]; then + return 0 + fi + + if [ -w /etc ] && [ ! -f /etc/adjtime ] && [ ! -e /etc/adjtime ]; then + echo "0.0 0 0.0" > /etc/adjtime + fi + + if [ ! -w /etc/adjtime ]; then + NOADJ="--noadjfile" + else + NOADJ="" + fi + + if [ "$FIRST" != yes ]; then + # Uncomment the hwclock --adjust line below if you want + # hwclock to try to correct systematic drift errors in the + # Hardware Clock. + # + # WARNING: If you uncomment this option, you must either make + # sure *nothing* changes the Hardware Clock other than + # hwclock --systohc, or you must delete /etc/adjtime + # every time someone else modifies the Hardware Clock. + # + # Common "vilains" are: ntp, MS Windows, the BIOS Setup + # program. + # + # WARNING: You must remember to invalidate (delete) + # /etc/adjtime if you ever need to set the system clock + # to a very different value and hwclock --adjust is being + # used. + # + # Please read /usr/share/doc/util-linux/README.Debian.hwclock + # before enabling hwclock --adjust. + + #/sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --adjust $GMT $BADYEAR + : + fi + + if [ "$HWCLOCKACCESS" != no ]; then + log_action_msg "Setting the system clock" + + # Copies Hardware Clock time to System Clock using the correct + # timezone for hardware clocks in local time, and sets kernel + # timezone. DO NOT REMOVE. + if /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --hctosys $GMT $HWCLOCKPARS $BADYEAR $NOADJ; then + # Announce the local time. + verbose_log_action_msg "System Clock set to: `date $UTC`" + else + log_warning_msg "Unable to set System Clock to: `date $UTC`" + fi + else + verbose_log_action_msg "Not setting System Clock" + fi + ;; + stop|restart|reload|force-reload) + # + # Updates the Hardware Clock with the System Clock time. + # This will *override* any changes made to the Hardware Clock. + # + # WARNING: If you disable this, any changes to the system + # clock will not be carried across reboots. + # + if [ ! -w /etc/adjtime ]; then + NOADJ="--noadjfile" + else + NOADJ="" + fi + + if [ "$HWCLOCKACCESS" != no ]; then + log_action_msg "Saving the system clock" + if [ "$GMT" = "-u" ]; then + GMT="--utc" + fi + if /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --systohc $GMT $HWCLOCKPARS $BADYEAR $NOADJ; then + verbose_log_action_msg "Hardware Clock updated to `date`" + fi + else + verbose_log_action_msg "Not saving System Clock" + fi + ;; + show) + if [ ! -w /etc/adjtime ]; then + NOADJ="--noadjfile" + else + NOADJ="" + fi + + if [ "$HWCLOCKACCESS" != no ]; then + /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --show $GMT $HWCLOCKPARS $BADYEAR $NOADJ + fi + ;; + *) + log_success_msg "Usage: hwclock.sh {start|stop|reload|force-reload|show}" + log_success_msg " start sets kernel (system) clock from hardware (RTC) clock" + log_success_msg " stop and reload set hardware (RTC) clock from kernel (system) clock" + return 1 + ;; + esac +} + +hwclocksh "$@" |