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-rw-r--r--init_functions16
1 files changed, 13 insertions, 3 deletions
diff --git a/init_functions b/init_functions
index 3ac0588..2bd07bd 100644
--- a/init_functions
+++ b/init_functions
@@ -11,14 +11,24 @@ poll_device() {
local device=$1 seconds=${2//[!0-9]}
[ -z "$seconds" ] && seconds=10
+ deciseconds=$(( seconds * 10 ))
+
+ # tenths of a second
+ sleepinterval=1
[ -b "$device" ] && return 0
if [ "$udevd_running" -eq 1 ]; then
msg "Waiting $seconds seconds for device $device ..." >&2
- while [ ! -b "$device" -a "$seconds" -gt 0 ]; do
- sleep 1
- seconds=$(( $seconds - 1 ))
+ while [ ! -b "$device" -a "$deciseconds" -gt 0 ]; do
+ if [ "$sleepinterval" -ge 10 ]; then
+ sleep 1
+ deciseconds=$(( deciseconds - 10 ))
+ else
+ sleep .$sleepinterval
+ deciseconds=$(( deciseconds - sleepinterval ))
+ sleepinterval=$(( sleepinterval * 2 ))
+ fi
done
fi