mirror of
git://git.openembedded.org/meta-openembedded
synced 2025-12-31 13:38:06 +00:00
74 lines
2.3 KiB
Bash
74 lines
2.3 KiB
Bash
#!/bin/sh -e
|
|
|
|
### BEGIN INIT INFO
|
|
# Provides: udev
|
|
# Required-Start: mountvirtfs
|
|
# Required-Stop:
|
|
# Default-Start: S
|
|
# Default-Stop:
|
|
# Short-Description: Start udevd, populate /dev and load drivers.
|
|
### END INIT INFO
|
|
|
|
export TZ=/etc/localtime
|
|
|
|
[ -d /sys/class ] || exit 1
|
|
[ -r /proc/mounts ] || exit 1
|
|
[ -x /sbin/udevd ] || exit 1
|
|
[ -f /etc/default/udev ] && . /etc/default/udev
|
|
[ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf
|
|
|
|
kill_udevd() {
|
|
if [ -x /sbin/pidof ]; then
|
|
pid=`/sbin/pidof -x udevd`
|
|
[ -n "$pid" ] && kill $pid
|
|
fi
|
|
}
|
|
|
|
export ACTION=add
|
|
# propagate /dev from /sys
|
|
echo "Starting udev"
|
|
|
|
# mount the tmpfs on /dev, if not already done
|
|
LANG=C awk "\$2 == \"/dev\" && \$3 == \"tmpfs\" { exit 1 }" /proc/mounts && {
|
|
mount -n -o mode=0755 -t tmpfs none "/dev"
|
|
mkdir -m 0755 /dev/pts
|
|
mkdir -m 1777 /dev/shm
|
|
}
|
|
|
|
if [ "$DEVCACHE" != "" ]; then
|
|
# Invalidate udev cache if the kernel or its bootargs/cmdline have changed
|
|
[ -x /bin/uname ] && /bin/uname -mrspv > /tmp/uname || touch /tmp/uname
|
|
[ -r /proc/cmdline ] && cat /proc/cmdline > /tmp/cmdline || touch /tmp/cmdline
|
|
[ -r /proc/atags ] && cat /proc/atags > /tmp/atags || touch /tmp/atags
|
|
if [ -e $DEVCACHE ] && \
|
|
cmp -s /tmp/uname /etc/udev/saved.uname && \
|
|
cmp -s /tmp/cmdline /etc/udev/saved.cmdline && \
|
|
cmp -s /tmp/atags /etc/udev/saved.atags; then
|
|
(cd /; tar xf $DEVCACHE > /dev/null 2>&1)
|
|
not_first_boot=1
|
|
fi
|
|
fi
|
|
|
|
if [ ! -e "/lib/modules/$(uname -r)"/modules.dep ] ; then
|
|
mkdir -p /lib/modules/$(uname -r)
|
|
depmod -ae
|
|
fi
|
|
|
|
# make_extra_nodes
|
|
kill_udevd > "/dev/null" 2>&1
|
|
|
|
# trigger the sorted events
|
|
echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
|
|
/sbin/udevd -d
|
|
|
|
/sbin/udevadm control --env STARTUP=1
|
|
if [ "$not_first_boot" != "" ];then
|
|
/sbin/udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux --subsystem-nomatch=platform
|
|
(/sbin/udevadm settle --timeout=8; /sbin/udevadm control --env STARTUP=)&
|
|
else
|
|
/sbin/udevadm trigger
|
|
/sbin/udevadm settle
|
|
fi
|
|
|
|
exit 0
|