Unix系统下安装usb无线网卡的步骤（以TL-WN722N为例）

以TL-WN722N为例：

A.下载。无论通过什么样的方法只要找到相应的版本驱动后，download到本地。（文件夹可以自己新建一个，mkdir apk9h）

B.安装。dpkg -i ath9k_htc-installer_1-0-4.deb  安装完不用重启

注意，以下红色字体解释都来自官方

Install the package. If --recursive or -R option is specified, package-file must refer to a directory instead. Installation consists of the following steps:

     1.Extract the control files of the new package.

     2. If another version of the same package was installed before the new installation, execute prerm script of the old package.

     3.Run preinst script, if provided by the package.

     4.Unpack the new files, and at the same time back up the old files, so that if something goes wrong, they can be restored.

     5.If another version of the same package was installed before the new installation, execute the postrm script of the old package. Note that this script is executed after the preinst script of the new package, because new files are written at the same time old files are removed.

     6.Configure the package. See --configure for detailed information about how this is done.

C．载入驱动。

D．校验驱动是否加载。通过命令 lsmod |grep ath

E．将USB无线网卡插入，执行命令：iwconfig 查看是否已有wlan0设备。如图：

看到如上即可。