DM6467内核linux2.6.18，多张电信3G无线网卡不能同时使用
同时插多张联通3G无线网卡，设备可以正常的拨号，但是如果插多张电信3G无线网卡，就会出现拨一张电信卡后，就不能再往下拨下去了，会卡住。以下是拨通了第一张卡，再连着拨第二张卡出现的卡住的情况，还请各位专家帮我看看，麻烦您们了！
下图是正常能拨号的情况：
Looking for target devices …
No devices in target mode or class found
Looking for default devices …
Found devices in default mode or class (1)
Accessing device 003 on bus 001 …
Getting the current device configuration …
OK, got current device configuration (1)
Using endpoints 0x08 (out) and 0x87 (in)
Using endpoints 0x08 (out) and 0x87 (in)
Inquiring device details; driver will be detached …
Looking for active driver …
OK, driver found ("usb-storage")
OK, driver "usb-storage" detached
SCSI inquiry data (for identification)
————————-
Vendor String: HUAWEI
Model String: Mass Storage
Revision String: 2.31
————————-
USB description data (for identiusb 1-1.1: usbfs: process 907 (usb_modeswitch) did not claim interface 0 before use
fication)
————————-
Manufacturer: HUAECHNOLOGIES
Product: HUAWEI Mobile
Serial No.: ———————-
Setting up communication with interface 0 …
Using endpoint 0x08 for message sending …
Trying to send message 1 to endpoint 0x08 …
OK, message successfully sent
Resetting response endpoint 0x87
Resetting message endpoint 0x08
Error resetting endpoint: -32
usb 1-1.1: USB disconnect, address 3
-> Run lsusb to note any changes. Bye.
下图为是不能拨号的情况，卡在那里：
Looking for target devices …
No devices in target mode or class found
Looking for default devices …
Found devices in default mode or class (1)
Accessing device 004 on bus 001 …
Getting the current device configuration …
OK, got current device configuration (1)
Using endpoints 0x01 (out) and 0x81 (in)
Using endpoints 0x01 (out) and 0x81 (in)
Inquiring device details; driver will be detached …
Looking for active driver …
OK, driver found ("usb-storage")
OK, driver "usb-storage" detached
用的是通用驱动usbserial吗？如果是的话，就在$KERNEL_SOURCE_DIR/drivers/usb/serial/generic.c这个文件中修改就可以了，即：
我们平时使用modprobe加载usbserial驱动时输入的vendor和product参数是传给usbserial_generic这个模块的。这里的调用过程是usb_serial_init()->usb_serial_general_register()。在这个函数中，在这里传入的参数：
generic_device_ids[0].idVendor = vendor;
generic_device_ids[0].idProduct = product;
generic_device_ids[0].match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT;
我们这里需要加入我们自己设备的vendor和product，因此在这行下面，我们需要加入：
// added by xzpeter, try to support both sim4100 and lc6311
// for sim4100
generic_device_ids[1].idVendor = 0x0456;
generic_device_ids[1].idProduct = 0x6532;
generic_device_ids[1].match_flags =
USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT;
// for lc6311
generic_device_ids[2].idVendor = 0x1AB7;
generic_device_ids[2].idProduct = 0x6000;
generic_device_ids[2].match_flags =
USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT;
// end here
