查看SMS Gateway的源代码

== 模式切换 ==

默认情形下，内核将 ZTE MF668 识别为 SCSI CD-ROM 设备(因为其内部有一个 MicroSD 控制器，可插MicroSD卡)：

<pre>
$ dmesg|grep scsi
[    3.769916] scsi0 : usb-storage 1-1.3:1.0
[    4.773973] scsi 0:0:0:0: CD-ROM            ZTE      USB SCSI CD-ROM  2.31 PQ: 0 ANSI: 2
[    6.514819] sr0: scsi-1 drive
[    6.530712] sr 0:0:0:0: Attached scsi CD-ROM sr0
</pre>


因此需要 usb-modeswitch 将其切换为 modem 模式：

<pre>
root@raspberrypi:/# apt-get install usb-modeswitch

root@raspberrypi:/# lsusb
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 19d2:2000 ZTE WCDMA Technologies MSM MF627/MF628/MF628+/MF636+ HSDPA/HSUPA

root@raspberrypi:/# cat /etc/usb_modeswitch.d/19d2\:2000
# ZTE devices

DefaultVendor=0x19d2
DefaultProduct=0x2000

TargetVendor=0x19d2
TargetProduct=0x0017

MessageContent="5553424312345678000000000000061e000000000000000000000000000000"
MessageContent2="5553424312345679000000000000061b000000020000000000000000000000"
MessageContent3="55534243123456702000000080000c85010101180101010101000000000000"

NeedResponse=1

root@raspberrypi:/# usb_modeswitch -I -c /etc/usb_modeswitch.d/19d2\:2000 

Looking for target devices ...
 No devices in target mode or class found
Looking for default devices ...
   found matching product ID
   adding device
 Found device in default mode, class or configuration (1)
Accessing device 004 on bus 001 ...
Getting the current device configuration ...
 OK, got current device configuration (1)
Using first interface: 0x00
Using endpoints 0x01 (out) and 0x81 (in)

USB description data (for identification)
-------------------------
Manufacturer: ZTE,Incorporated
     Product: ZTE WCDMA Technologies MSM
  Serial No.: P680A1ZTED010000
-------------------------
Looking for active driver ...
 No driver found. Either detached before or never attached
Setting up communication with interface 0
Using endpoint 0x01 for message sending ...
Trying to send message 1 to endpoint 0x01 ...
 OK, message successfully sent
Reading the response to message 1 (CSW) ...
 OK, response successfully read (13 bytes).
Trying to send message 2 to endpoint 0x01 ...
 OK, message successfully sent
Reading the response to message 2 (CSW) ...
 OK, response successfully read (13 bytes).
Trying to send message 3 to endpoint 0x01 ...
 OK, message successfully sent
Reading the response to message 3 (CSW) ...
 OK, response successfully read (0 bytes).
Resetting response endpoint 0x81
Resetting message endpoint 0x01
-> Run lsusb to note any changes. Bye.

</pre>


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