Created
March 27, 2012 04:27
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#!/bin/sh | |
#inspired by http://art.ubuntuforums.org/showpost.php?p=9744970&postcount=19 | |
#...and http://thecodecentral.com/2011/01/18/fix-ubuntu-10-10-suspendhibernate-not-working-bug | |
# tidied by tqzzaa :) | |
VERSION=1.1 | |
DEV_LIST=/tmp/usb-dev-list | |
DRIVERS_DIR=/sys/bus/pci/drivers | |
DRIVERS="ehci xhci" # ehci_hcd, xhci_hcd | |
HEX="[[:xdigit:]]" | |
MAX_BIND_ATTEMPTS=2 | |
BIND_WAIT=0.1 | |
unbindDev() { | |
echo -n > $DEV_LIST 2>/dev/null | |
for driver in $DRIVERS; do | |
DDIR=$DRIVERS_DIR/${driver}_hcd | |
for dev in `ls $DDIR 2>/dev/null | egrep "^$HEX+:$HEX+:$HEX"`; do | |
echo -n "$dev" > $DDIR/unbind | |
echo "$driver $dev" >> $DEV_LIST | |
done | |
done | |
} | |
bindDev() { | |
if [ -s $DEV_LIST ]; then | |
while read driver dev; do | |
DDIR=$DRIVERS_DIR/${driver}_hcd | |
while [ $((MAX_BIND_ATTEMPTS)) -gt 0 ]; do | |
echo -n "$dev" > $DDIR/bind | |
if [ ! -L "$DDIR/$dev" ]; then | |
sleep $BIND_WAIT | |
else | |
break | |
fi | |
MAX_BIND_ATTEMPTS=$((MAX_BIND_ATTEMPTS-1)) | |
done | |
done < $DEV_LIST | |
fi | |
rm $DEV_LIST 2>/dev/null | |
} | |
case "$1" in | |
hibernate|suspend) unbindDev;; | |
resume|thaw) bindDev;; | |
esac |
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