linux系统下3G模块USB串口驱动程序源代码最新版本

				#!/bin/sh								export APN="internet.eplus.de"				export USR="eplus"				export PAS="gprs"				export PIN="0000"				#export APN="web.vodafone.de"				#export USR=""				#export PAS=""																DEVICE=/dev/ttyHS0								TMPFIL=/tmp/connect.$$								up() {					echo connecting									stty 19200 -tostop										rm -f $TMPFIL					(						/usr/sbin/chat -E -s -V -f dial.cht  $DEVICE					) 2>&1 |tee $TMPFIL					echo " "n inet					echo connected					echo " "					PIP="`grep '^_OWANDATA' $TMPFIL | cut -d, -f2`"					NS1="`grep '^_OWANDATA' $TMPFIL | cut -d, -f4`"					NS2="`grep '^_OWANDATA' $TMPFIL | cut -d, -f5`"									#ifconfig hso0 $PIP netmask 255.255.255.255 up									ORT="`route | grep default | awk '{printf $8}'`"	# find the old default route and replace it					#route delete default dev $ORT					echo "add route"					#route add default dev hso0					#mv -f /etc/resolv.conf /tmp/resolv.conf.tmp									echo "set nameserver"					(							# update the DNS						echo "nameserver	$NS1"						echo "nameserver	$NS2"					) > /etc/resolv.conf									rm -f $TMPFIL									}								down() {					echo disconnecting									/usr/sbin/chat -V -f stop.cht $DEVICE					ifconfig hso0 down					echo "reset nameserver"					mv -f /tmp/resolv.conf.tmp /etc/resolv.conf				}								init() {					echo init										/usr/sbin/chat -E -s -V -f init.cht $DEVICE				}								usage() {					echo Usage: $0 \(up\|down\|restart\|init\)				}								case "$1" in					up)						up						;;					down)						down						;;					restart)						down						up						;;					init)						init						;;					*)						usage						;;				esac