我需要一张可与 Ubuntu 服务器 14.04 配合使用的 Sierra Wireless AirPrime MC7354 mini-PCI Express 卡。该卡已在 Verizon 网络上激活，我现在正尝试在 Ubuntu 端配置该卡。
我的主要问题是该卡没有暴露网络接口（例如wwan0或类似接口），虽然操作系统可以识别它，但它只显示为 USB 设备。我已经彻底搜索了论坛，但在相关的 Sierra 卡主题中没有找到任何有意义的帮助。
Sierra Wireless MC7354 数据表这里，您可以找到技术规格这里
该设备被操作系统识别并lsusb显示：
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 1199:68c0 Sierra Wireless, Inc.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 04ca:004b Lite-On Technology Corp.
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
并modinfo sierra显示：
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/usb/serial/sierra.ko
license: GPL
description: USB Driver for Sierra Wireless USB modems
author: Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer
srcversion: C5D0FAB85FF8A5FE30B851A
alias: usb:v413Cp8133d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0F3Dp68A3d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0F3Dp68AAd*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p68A3d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6893d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6892d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p6891d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p6890d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p6880d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p685Ad*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6859d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6856d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6855d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6853d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6852d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6851d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6850d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p683Ed*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p683Dd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p683Cd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p683Bd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p683Ad*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6839d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6838d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6835d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6834d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6833d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6832d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6822d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6821d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6820d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6816d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6815d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6813d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6812d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6809d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6808d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6805d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6804d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6803d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p6802d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0029d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0028d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0027d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0026d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0025d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p0023d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v1199p0301d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0120d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0112d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0021d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0019d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0224d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0024d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0022d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0220d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0020d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0218d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0018d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v1199p0017d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v03F0p1E1Dd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v03F0p211Dd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v03F0p1B1Dd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0F3Dp0112d*dc*dsc*dp*ic*isc*ip*in*
depends: usbserial
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 00:A5:A6:57:59:DE:47:4B:C5:C4:31:20:88:0C:1B:94:A5:39:F4:31
sig_hashalgo: sha512
parm: nmea:NMEA streaming (bool)
并modinfo sierra_net显示：
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/net/usb/sierra_net.ko
license: GPL
version: v.2.0
description: USB-to-WWAN Driver for Sierra Wireless modems
author: Paxton Smith, Matthew Safar, Rory Filer
srcversion: 896313DAA9C61C842F37412
alias: usb:v0F3Dp68AAd*dc*dsc*dp*ic*isc*ip*in0B*
alias: usb:v0F3Dp68AAd*dc*dsc*dp*ic*isc*ip*in0A*
alias: usb:v0F3Dp68AAd*dc*dsc*dp*ic*isc*ip*in07*
alias: usb:v1199p68AAd*dc*dsc*dp*ic*isc*ip*in0B*
alias: usb:v1199p68AAd*dc*dsc*dp*ic*isc*ip*in0A*
alias: usb:v1199p68AAd*dc*dsc*dp*ic*isc*ip*in07*
alias: usb:v0F3Dp68A3d*dc*dsc*dp*ic*isc*ip*in0B*
alias: usb:v0F3Dp68A3d*dc*dsc*dp*ic*isc*ip*in0A*
alias: usb:v0F3Dp68A3d*dc*dsc*dp*ic*isc*ip*in07*
alias: usb:v1199p68A3d*dc*dsc*dp*ic*isc*ip*in0B*
alias: usb:v1199p68A3d*dc*dsc*dp*ic*isc*ip*in0A*
alias: usb:v1199p68A3d*dc*dsc*dp*ic*isc*ip*in07*
depends: usbnet
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 00:A5:A6:57:59:DE:47:4B:C5:C4:31:20:88:0C:1B:94:A5:39:F4:31
sig_hashalgo: sha512
最后，ifconfig -a显示eth1、lo和p5p1接口（主板有两个 NIC）。我（显然）需要该卡作为网络接口显示，以便我们的应用程序正常工作。我还注意到没有 ttyUSB* 设备，/dev我不确定为什么会这样。
我对 Linux 还比较陌生（但对操作系统却一点都不陌生），真的不知道接下来该怎么做。我所知道的是，这个型号不支持 Direct-IP，而其他一些型号支持。我也搜索了 SW 支持网站，但大多数文档都与编写驱动程序以与其设备接口有关。一些规格提到了 Gobi 项目，但由于可用信息太少，而且我自己也缺乏知识，所以真的很难弄清楚该往哪个方向走。