I encountered PPP problem while trying to make a USB 3G modem working.
My Linux kernel is able to detect the modem (ttyUSB0 - ttyUSB3) and my pppd deamon is started, dial up also OK (CONNECT received), however my ppp link (ppp0) is not created so I am not able to browse Internet. Would someone please give some ideas about it? It will be very helpful and highly appreciated. in init.rc ------------------------------------------------------------------- service ril-daemon /system/bin/rild -l /system/lib/libreference-ril.so -- -d /dev/ttyUSB3 -u /dev/ttyUSB0 socket rild stream 660 root radio socket rild-debug stream 660 radio system user root group radio cache inet misc audio -------------------------------------------------------------------- in init.gprs-pppd --------------------------------------------------------------------- PPPD_PID= /system/bin/setprop "net.gprs.ppp-exit" "" /system/bin/log -t pppd "Starting pppd" /system/bin/pppd /dev/ttyUSB0 115200 mru 1280 mtu 1280 nodetach debug dump defaultroute usepeerdns novj novjccomp noipdefault ipcp-accept- local ipcp-accept-remote connect-delay 5000 linkname ppp0 PPPD_EXIT=$? PPPD_PID=$! /system/bin/log -t pppd "pppd exited with $PPPD_EXIT" /system/bin/setprop "net.gprs.ppp-exit" "$PPPD_EXIT" ----------------------------------------------------------- Logs for your reference. D/AT ( 873): AT> ATD*99***1# D/AT ( 873): ATD*99***1# D/AT ( 873): D/AT ( 873): D/AT ( 873): CONNECT D/AT ( 873): D/AT ( 873): AT< CONNECT D/RIL ( 873): after ATD*99***1# D/RIL ( 873): PPPd started D/RIL ( 873): errno after open ppp 2 W/RIL ( 873): Can not detect PPP state in /sys/class/net/ppp0/ operstate. Will retry 9 times after 3 seconds W/RIL ( 873): Can not detect PPP state in /sys/class/net/ppp0/ operstate. Will retry 8 times after 3 seconds W/RIL ( 873): Can not detect PPP state in /sys/class/net/ppp0/ operstate. Will retry 7 times after 3 seconds W/RIL ( 873): Can not detect PPP state in /sys/class/net/ppp0/ operstate. Will retry 6 times after 3 seconds W/RIL ( 873): Can not detect PPP state in /sys/class/net/ppp0/ operstate. Will retry 5 times after 3 seconds -- unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting