init.qcom.bt.sh

#!/system/bin/sh
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TAG=init.qcom.bt

start_hciattach ()
{
  /system/bin/hciattach_awesome -n /dev/ttyHS0 bcsp &
  hciattach_pid=$!
  log -p i -t $TAG "start_hciattach: pid = $hciattach_pid"
}

kill_hciattach ()
{
  log -p i -t $TAG "kill_hciattach: pid = $hciattach_pid"
  ## careful not to kill zero or null!
  kill -TERM $hciattach_pid
  # this shell doesn't exit now -- wait returns for normal exit
}

# Android (esp. CM10) can restart the hciattach service (this script)
# immediately after closing the hsuart. This can happen so fast that
# the hsuart isn't fully closed by the time bcattach is run. This
# can cause kernel crash. Add delay below (sleep 2) to avoid.
## DO NOT REMOVE 'sleep 2' below
sleep 2
## DO NOT REMOVE 'sleep 2' above

log -p i -t $TAG "bcattach"
/system/bin/bcattach

# init does SIGTERM on ctl.stop for service
trap "kill_hciattach" TERM INT

start_hciattach

wait $hciattach_pid

log -p i -t $TAG "Bluetooth stopped"

exit 0