usb disconnect workaround

REAME.md

@@ -81,7 +81,22 @@ MessageContent="55534243123456780000000000000011063000000000010000000000000000"
 NoMBIMCheck=1
 
 /etc/usb_modeswitch.conf:
-SetStorageDelay=4
+SetStorageDelay=8
+
+Workaround fuer USB disconnects:
+
+/etc/cron.d/reset_usb:
+#  Reset USB if device names disappear
+* * * * * root [ ! -c /dev/ttyUSB0 ] && /usr/local/bin/usb_off_on.sh 2>/dev/null
+
+/usr/local/bin/usb_off_on.sh:
+#!/bin/bash
+# Joerg
+echo "$(date) - ${0} - reset USB because device disappeared" >> /var/log/usb_off_on.log
+echo 0 > /sys/devices/platform/soc/20980000.usb/buspower
+sleep 5
+echo 1 > /sys/devices/platform/soc/20980000.usb/buspower
+
 
 
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