我有华为 CDMA 2252+ 手机，我想将其连接到 Linux 来发送短信。在 Fedora 15（64 位）中，它被视为 CD-ROM。这是dmesg手机插入后的输出。
[10887.524339] USB Mass Storage support registered.
[10888.614507] scsi 3:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
[10888.786098] sr1: scsi-1 drive
[10888.788583] sr 3:0:0:0: Attached scsi CD-ROM sr1
[10888.788904] sr 3:0:0:0: Attached scsi generic sg2 type 5
[10899.106066] sr1: CDROM (ioctl) error, command: Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00
[10899.106073] sr: Sense Key : Hardware Error [current]
[10899.106075] sr: Add. Sense: No additional sense information
这是以下的输出lsusb：
Bus 002 Device 004: ID 12d1:1010 Huawei Technologies Co., Ltd.
然后我尝试将usb_modeswitch设备更改为 USB，如下所示。 （我的设备不在usb_modewitch支持的设备列表中。）
的输出usb_modeswitch --verbose -H -v 0x12d1 -p 0x1010：
* usb_modeswitch: handle USB devices with multiple modes
* Version 1.1.6 (C) Josua Dietze 2010
* Based on libusb0 (0.1.12 and above)
! PLEASE REPORT NEW CONFIGURATIONS !
DefaultVendor= 0x12d1
DefaultProduct= 0x1010
TargetVendor= not set
TargetProduct= not set
TargetClass= not set
TargetProductList=""
DetachStorageOnly=0
HuaweiMode=1
SierraMode=0
SonyMode=0
GCTMode=0
KobilMode=0
MessageEndpoint= not set
MessageContent=""
NeedResponse=0
ResponseEndpoint= not set
Interface=0x00
InquireDevice enabled (default)
Success check disabled
System integration mode disabled
Looking for default devices ...
searching devices, found USB ID 1d6b:0002
searching devices, found USB ID 1d6b:0001
searching devices, found USB ID 12d1:1010
found matching vendor ID
found matching product ID
adding device
searching devices, found USB ID 0e0f:0003
searching devices, found USB ID 0e0f:0002
Found devices in default mode, class or configuration (1)
Accessing device 005 on bus 002 ...
Getting the current device configuration ...
OK, got current device configuration (1)
Using endpoints 0x0b (out) and 0x8a (in)
Using endpoints 0x0b (out) and 0x8a (in)
Not a storage device, skipping SCSI inquiry
USB description data (for identification)
-------------------------
Manufacturer: Huawei, Incorporated
Product: Huawei Technologies
Serial No.: not provided
-------------------------
Sending Huawei control message ...
OK, Huawei control message sent
-> Run lsusb to note any changes. Bye.
之后我运行了lsusb，没有注意到任何变化。但通知如下dmesg：
[ 180.438107] usb 2-2.1: USB disconnect, address 4
[ 199.385604] usb 2-2.1: new full speed USB device using uhci_hcd and address 5
[ 199.648757] usb 2-2.1: New USB device found, idVendor=12d1, idProduct=1010
[ 199.648759] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 199.648761] usb 2-2.1: Product: Huawei Technologies
[ 199.648762] usb 2-2.1: Manufacturer: Huawei, Incorporated
以下内容摘自/var/log/messages.
kernel: [ 180.438107] usb 2-2.1: USB disconnect, address 4
kernel: [ 199.385604] usb 2-2.1: new full speed USB device using uhci_hcd and address 5
kernel: [ 199.648757] usb 2-2.1: New USB device found, idVendor=12d1, idProduct=1010
kernel: [ 199.648759] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
kernel: [ 199.648761] usb 2-2.1: Product: Huawei Technologies
kernel: [ 199.648762] usb 2-2.1: Manufacturer: Huawei, Incorporated
mtp-probe: checking bus 2, device 5: "/sys/devices/pci0000:00/0000:00:11.0/0000:02:00.0/usb2/2-2/2-2.1"
mtp-probe: bus: 2, device: 5 was not an MTP device
我不确定是否已成功将手机从 CD-ROM 切换到 USB。有什么办法可以证实这一点吗？我的文件夹下没有任何ttyUSB文件/dev。如何找到上面的设备对应的是哪个文件呢？此外，我想向手机发送 AT 命令。怎么做？