Gammu SMS Daemon usb_modeswitch helper with Cyborg Mobile Broadband E488 4G LTE USB Stick (Telkomsel Flash)

smsd

#!/sbin/openrc-run
# Gammu SMS Daemon usb_modeswitch helper with Cyborg Mobile Broadband E488 4G LTE USB Stick (Telkomsel Flash)
retry="60"
pidfile="/var/run/$RC_SVCNAME.pid"
command="/usr/bin/gammu-smsd"
command_args="-d -p /var/run/$RC_SVCNAME.pid -c /etc/gammurc"
#command_background=true
#procname="gammu-smsd"

depend() {
	need root localmount
}

# Init modem with usb_modeswitch
start_pre() {
    local USB
    local USB_SERIAL
    local USB_TTY

    ebegin "Starting $RC_SVCNAME (Device $VENDOR_ID).."
    for f in /sys/bus/usb/devices/*/idVendor; do
        if grep -q "^$VENDOR_ID" "$f"; then
            USB=${f%/idVendor}
            break
        fi
    done

    if [ -z "$USB" ]; then
        eend 1 "Device not found"
        return 1
    fi

    case `cat $USB/idProduct` in
    $PRODUCT_ID_INIT)
        if [ "$1" = "self" ]; then
             eend 1 "Failed to Initialize device."
            return 1
        fi
        echo -n "Initialize the device.. " >&2
        usb_modeswitch -v $VENDOR_ID -p $PRODUCT_ID_INIT -K > /dev/null
        echo "OK" >&2
        sleep 2
        start_pre self
        ;;
    $PRODUCT_ID_READY)
        if [ ! -d /sys/module/usbserial ]; then modprobe usbserial; fi

        echo $VENDOR_ID $PRODUCT_ID_READY > /sys/module/usbserial/drivers/usb-serial\:generic/new_id
        sleep 0.5
        for f in $USB/*\:*/uevent; do

            USB_SERIAL=${f%/uevent}
            if  grep -q '^DRIVER=usbserial' $f &&
                [ `cat $USB_SERIAL/bInterfaceNumber` = "$INTERFACE_NUMBER" ] &&
                [ -d $USB_SERIAL/ttyUSB* ]
            then
                USB_TTY=`find "$USB_SERIAL" -maxdepth 1 -name 'ttyUSB*'`
                USB_TTY="/dev/${USB_TTY##*/}"
                break
                #cat $f
            fi
        done
        if [ -z $USB_TTY ] || [ ! -e $USB_TTY ]; then
            eend 1 "Device not exist $USB_TTY"
            return 1;
        fi
        ;;
    *)
        eend 1 "Device not found"
        return 1
    esac

    ln -sf $USB_TTY /dev/modem-cyborg

    eend 0 "Ready"
}

smsd.conf

VENDOR_ID=05c6
PRODUCT_ID_INIT=92fe
PRODUCT_ID_READY=9201
INTERFACE_NUMBER=01 # ttyUSB1