MT7620原生SDK支持HUAWEI 4G dongle
[email protected] junglefly
HUAWEI新的4Gdongle不同于老的3G dongle，需要使用3G拨号；由于4G dongle本身就会自动拨号，所以对于linux来说，只需要做到如下两件事情：
l 加载正确的驱动；
l 启动DHCP 客户端，从4G dongle获得IP地址。
现在HUAWEI的很多4G dongle使用 USB CDC Ethernet devices 或者 USB CDC NCM host driver ，作为一个USB口的网络设备来工作。下表是华为的一些3G，4G dongle使用的驱动举例：
| 型号 |
使用的驱动 |
Debug信息 |
| HUAWEI E3531 |
cdc_ether |
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 17 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=12d1 ProdID=14dc Rev= 1.02 S: Manufacturer=HUAWEI S: Product=HUAWEI Mobile C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=32ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
网络接口： usb0 Link encap:Ethernet HWaddr 3A:EA:AC:1A:1F:75 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) |
| HUAWEI E355 |
cdc_ncm |
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 19 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=12d1 ProdID=1c1e Rev= 1.02 S: Manufacturer=HUAWEI S: Product=HUAWEI Mobile C:* #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I: If#= 3 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0d Prot=00 Driver=cdc_ncm E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=2ms I:* If#= 3 Alt= 1 #EPs= 3 Cls=02(comm.) Sub=0d Prot=00 Driver=cdc_ncm E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
网络接口： wwan0 Link encap:Ethernet HWaddr 58:2C:80:13:92:63 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
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| HUAWEI E3131 |
cdc_ncm |
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 23 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=12d1 ProdID=1506 Rev= 1.02 S: Manufacturer=HUAWEI S: Product=HUAWEI Mobile C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=01 Driver=(none) E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I: If#= 1 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=02 Prot=16 Driver=cdc_ncm E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms I:* If#= 1 Alt= 1 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=16 Driver=cdc_ncm E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=02 Prot=03 Driver=(none) E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=02 Prot=02 Driver=(none) E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
网络接口： wwan0 Link encap:Ethernet HWaddr 58:2C:80:13:92:63 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
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| HUAWEI EC3372-871 |
cdc_ether |
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 21 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=12d1 ProdID=14dc Rev= 1.02 S: Manufacturer=HUAWEI_MOBILE S: Product=HUAWEI_MOBILE C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr= 2mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=2ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=06 Prot=00 Driver=cdc_ether E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
网络接口： eth0 Link encap:Ethernet HWaddr 0C:5B:8F:27:9A:64 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) |
| HUAWEI E303F |
cdc_ether |
T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 25 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=12d1 ProdID=14db Rev= 1.02 S: Manufacturer=HUAWEI S: Product=HUAWEI HiLink C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=2ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=06 Prot=00 Driver=cdc_ether E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
网络接口： eth0 Link encap:Ethernet HWaddr 58:2C:80:13:92:63 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) |
MT7620原生SDK使用的linux内核版本为2.6.36，在该内核版本中，还不支持USB CDC NCM host driv，另外USB CDC Ethernet驱动中也不支持huawei设备。
如果是作为USB CDC NCM host driver设备来使用的话，由于从2.6.38开启内核才有该驱动，所以需要从比较新的linux内核中移植过去。
移植源文件
移植2.6.39内核
首先移植2.6.39内核的linux-2.6.39\drivers\net\usb目录中的相关文件到MT7620的对应目录中;
l 将cdc_ncm.c直接拷贝到MT7620 SDK中；
l 修改“source\linux-2.6.36.x\drivers\net\usb\Kconfig”，添加如下行
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config USB_NET_CDC_NCM tristate "CDC NCM support" depends on USB_USBNET default y help This driver provides support for CDC NCM (Network Control Model Device USB Class Specification). The CDC NCM specification is available from <http://www.usb.org/>.
Say "y" to link the driver statically, or "m" to build a dynamically linked module.
This driver should work with at least the following devices: * ST-Ericsson M700 LTE FDD/TDD Mobile Broadband Modem (ref. design) * ST-Ericsson M5730 HSPA+ Mobile Broadband Modem (reference design) * ST-Ericsson M570 HSPA+ Mobile Broadband Modem (reference design) * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design) * Ericsson F5521gw Mobile Broadband Module
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l 修改“source\linux-2.6.36.x\drivers\net\usb\Makefile”，添加如下行
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obj-$(CONFIG_USB_NET_CDC_NCM) += cdc_ncm.o
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l 编译时，缺少的头文件可以从linux-2.6.39中拷贝过去；
移植linux-3.10.11部分的驱动
部分修改如下：
l 修改“source\linux-2.6.36.x\drivers\net\usb\cdc_ncm.c”
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/* Same as cdc_ncm_info, but with FLAG_WWAN */ static const struct driver_info wwan_info = { .description = "Mobile Broadband Network Device", .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, .bind = cdc_ncm_bind, .unbind = cdc_ncm_unbind, .check_connect = cdc_ncm_check_connect, .manage_power = cdc_ncm_manage_power, .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, };
/* Same as wwan_info, but with FLAG_NOARP */ static const struct driver_info wwan_noarp_info = { .description = "Mobile Broadband Network Device (NO ARP)", .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN | FLAG_NOARP, .bind = cdc_ncm_bind, .unbind = cdc_ncm_unbind, .check_connect = cdc_ncm_check_connect, .manage_power = cdc_ncm_manage_power, .status = cdc_ncm_status, .rx_fixup = cdc_ncm_rx_fixup, .tx_fixup = cdc_ncm_tx_fixup, };
static const struct usb_device_id cdc_devs[] = { /* Ericsson MBM devices like F5521gw */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x0bdb, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long) &wwan_info, },
/* Dell branded MBM devices like DW5550 */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x413c, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long) &wwan_info, },
/* Toshiba branded MBM devices */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, .idVendor = 0x0930, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long) &wwan_info, },
/* tag Huawei devices as wwan */ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, },
/* Huawei NCM devices disguised as vendor specific */ { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16), .driver_info = (unsigned long)&wwan_info, }, { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46), .driver_info = (unsigned long)&wwan_info, }, { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x76), .driver_info = (unsigned long)&wwan_info, },
/* Infineon(now Intel) HSPA Modem platform */ { USB_DEVICE_AND_INTERFACE_INFO(0x1519, 0x0443, USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_noarp_info, },
/* Generic CDC-NCM devices */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_ncm_info, }, { }, }; MODULE_DEVICE_TABLE(usb, cdc_devs);
static struct usb_driver cdc_ncm_driver = { .name = "cdc_ncm", .id_table = cdc_devs, .probe = cdc_ncm_probe, .disconnect = cdc_ncm_disconnect, .suspend = usbnet_suspend, .resume = usbnet_resume, .supports_autosuspend = 1, };
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l 修改“source\linux-2.6.36.x\drivers\net\usb\cdc_ether.c”
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#define HUAWEI_VENDOR_ID 0x12D1 #define NOVATEL_VENDOR_ID 0x1410 #define ZTE_VENDOR_ID 0x19D2 #define DELL_VENDOR_ID 0x413C #define REALTEK_VENDOR_ID 0x0bda
/* LG Electronics VL600 wants additional headers on every frame */ { USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */ { USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* Novatel USB551L and MC551 - handled by qmi_wwan */ { USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* Novatel E362 - handled by qmi_wwan */ { USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */ { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */ { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, },
/* AnyDATA ADU960S - handled by qmi_wwan */ { USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, }, #if 0 /* Huawei E1820 - handled by qmi_wwan */ { USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1), .driver_info = 0, }, #endif
/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ #if defined(CONFIG_USB_RTL8152) || defined(CONFIG_USB_RTL8152_MODULE) { USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = 0, }, #endif
/* * WHITELIST!!! * * CDC Ether uses two interfaces, not necessarily consecutive. * We match the main interface, ignoring the optional device * class so we could handle devices that aren't exclusively * CDC ether. * * NOTE: this match must come AFTER entries blacklisting devices * because of bugs/quirks in a given product (like Zaurus, above). */ { /* ZTE (Vodafone) K3805-Z */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = ZTE_VENDOR_ID, .idProduct = 0x1003, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K3806-Z */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = ZTE_VENDOR_ID, .idProduct = 0x1015, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K4510-Z */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = ZTE_VENDOR_ID, .idProduct = 0x1173, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K3770-Z */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = ZTE_VENDOR_ID, .idProduct = 0x1177, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K3772-Z */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = ZTE_VENDOR_ID, .idProduct = 0x1181, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long)&wwan_info, }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = (unsigned long) &cdc_info, }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info,
}, { /* Various Huawei modems with a network port like the UMG1831 */ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, .idVendor = HUAWEI_VENDOR_ID, .bInterfaceClass = USB_CLASS_COMM, .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = 255, .driver_info = (unsigned long)&wwan_info, }, { }, // END }; MODULE_DEVICE_TABLE(usb, products);
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启动DHCP客户端获得IP
待续......