硬件环境：IBM T43p
操作系统：Ubuntu8.04
我的无线上网卡是华为的EG602，结果被系统（ubuntu8.04)识别成华为E220，导致无法使用。
root@ubuntu:~# lsusb
Bus 007 Device 001: ID 0000:0000
Bus 006 Device 002: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem
Bus 006 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 002: ID 046d:c019 Logitech, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
前几日安装完ubuntu，成功设置好了EDGE卡并拨号上网。谁知天有不测风云，在xp下使用分区工具删除另外一个linux分区的时候，包括E盘在内的诸多分区都不翼而飞了，于是使用分区表工具恢复了分区，但是所有的linux分区都变成了未分区空间。
再次从装了ubuntu后，发现系统识别的EDGE卡和上一次有些区别，此后多次从装系统，依然无法像第一次一样正常使用EDGE卡
原来：
插上设备的时候，多出ttyUSB0，1，2，3，4，5一系列设备
root@asia:~# dmesg |grep tty
[ 4.538995] console [tty0] enabled
[ 6.395706] 00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a NS16550A
[ 29.405636] usb 6-1: airprime converter now attached to ttyUSB0
[ 29.405681] usb 6-1: airprime converter now attached to ttyUSB1
[ 29.405725] usb 6-1: airprime converter now attached to ttyUSB2
[ 29.418744] usb 6-1: airprime converter now attached to ttyUSB3
[ 29.418789] usb 6-1: airprime converter now attached to ttyUSB4
[ 29.418836] usb 6-1: airprime converter now attached to ttyUSB5
[ 31.169171] audit(1214542582.464:2): type=1503 operation="inode_permission" requested_mask="a::" denied_mask="a::" name="/dev/tty" pid=5161 profile="/usr/sbin/cupsd" namespace="default"
现在：
较之原来缺少了USB3，4，5
[ 11.316735] console [tty0] enabled
[ 13.125485] 00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a NS16550A
[ 39.070248] usb 6-1: airprime converter now attached to ttyUSB0
[ 39.070298] usb 6-1: airprime converter now attached to ttyUSB1
[ 39.070342] usb 6-1: airprime converter now attached to ttyUSB2
[ 47.502244] audit(1215052757.361:2): type=1503 operation="inode_permission" requested_mask="a::" denied_mask="a::" name="/dev/tty" pid=5116 profile="/usr/sbin/cupsd" namespace="default"
可惜当时没有lsusb看一下，系统把我的卡识别成什么型号设备！
哈哈，今天终于把问题给解决了
解决方法如下：
启动系统后，把原来系统加载的模块删除掉
root@ubuntu:~# rmmod airprime usbserial
把卡弹出后在插入后，奇迹出现了
root@ubuntu:~# dmesg |grep tty
[ 765.702220] usb 6-1: airprime converter now attached to ttyUSB0
[ 765.702329] usb 6-1: airprime converter now attached to ttyUSB1
[ 765.702430] usb 6-1: airprime converter now attached to ttyUSB2
[ 765.709661] usb 6-1: airprime converter now attached to ttyUSB3
[ 765.709785] usb 6-1: airprime converter now attached to ttyUSB4
[ 765.709888] usb 6-1: airprime converter now attached to ttyUSB5
直觉告诉我，问题已经迎刃而解了！
果然
root@ubuntu:~# wvdial
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Sun Jul 6 15:01:58 2008
--> Pid of pppd: 7154
--> Using interface ppp0
--> local IP address 10.48.161.254
--> remote IP address 10.64.64.64
--> primary DNS address 211.137.32.178
--> secondary DNS address 211.136.17.107
哈哈，困扰我几天的难题解决了！
root@ubuntu:~# lsusb
Bus 007 Device 001: ID 0000:0000
Bus 006 Device 003: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem
Bus 006 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 002: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 003: ID 046d:c019 Logitech, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
居然EG602卡还是被系统识别成E220，无所谓了，反正好用了。
