我试图在树莓派b +型(或任何树莓派)上为RTL8188CUS芯片组的USB wifi加密狗启用监视模式。
$ lsusb
Bus 001 Device 005: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter
$ sudo iwconfig wlan0 mode monitor
Error for wireless request "Set Mode" (8B06) :
SET failed on device wlan0 ; Invalid argument.
根据github / raspberrypi / linux / issues / 369,您需要启用rtlwifi / rtl8192cu内核模块,该模块已包含在内核发行版中但尚未编译。这需要对某些文件进行较小的修改,如下文“ STEP 2”中所述。
从4.1.6+开始,该线程中提到的USB问题已得到解决,因此rtlwifi驱动程序应该可以使用。
在新鲜的树莓派(B +型)上重新制作的步骤...
步骤0:将现有模块和内核更新为最新版本
$ sudo apt-get update
$ sudo rpi-update
$ uname -a
Linux raspberrypi 4.1.7+ #815 PREEMPT Thu Sep 17 17:59:24 BST 2015 armv6l GNU/Linux
步骤1:获取raspbian内核源代码并添加缺少的依赖项
$ git clone --depth=1 https://github.com/raspberrypi/linux
$ sudo apt-get install bc lshw
步骤2:启用RTL8188CUS(RTL8192)的rtlwifi(内核)驱动程序
edit linux/drivers/net/wireless/Kconfig
-#source "drivers/net/wireless/rtlwifi/Kconfig"
-source "drivers/net/wireless/rtl8192cu/Kconfig"
+source "drivers/net/wireless/rtlwifi/Kconfig"
+#source "drivers/net/wireless/rtl8192cu/Kconfig"
edit linux/drivers/net/wireless/Makefile
-#obj-$(CONFIG_RTLWIFI) += rtlwifi/
+obj-$(CONFIG_RTLWIFI) += rtlwifi/
步骤3:编译并安装内核(耗时数小时)
摘自内核构建文档。
$ cd linux
$ KERNEL=kernel
$ make bcmrpi_defconfig
$ make zImage modules dtbs
$ sudo make modules_install
$ sudo cp arch/arm/boot/dts/*.dtb /boot/
$ sudo cp arch/arm/boot/dts/overlays/*.dtb* /boot/overlays/
$ sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/
$ sudo scripts/mkknlimg arch/arm/boot/zImage /boot/$KERNEL.img
步骤4:重新启动
$ sudo reboot
步骤5:检查rtlwifi / rtl8192cu模块是否已加载
$ lsmod | fgrep rtl8192cu
rtl8192cu 100806 0
rtl_usb 14781 1 rtl8192cu
rtl8192c_common 72091 1 rtl8192cu
rtlwifi 101122 3 rtl_usb,rtl8192c_common,rtl8192cu
mac80211 623281 3 rtl_usb,rtlwifi,rtl8192cu
$
$ lshw
*-network:0
description: Ethernet interface
physical id: 1
bus info: usb@1:1.3
logical name: wlan0
serial: 00:0b:81:94:e9:a3
capabilities: ethernet physical
configuration: broadcast=yes driver=rtl8192cu driverversion=4.1.7+ firmware=N/A link=no multicast=yes
步骤6:尝试启动监视模式
$ sudo iwconfig wlan0 mode monitor
Error for wireless request "Set Mode" (8B06) :
SET failed on device wlan0 ; Operation not supported.
我错过了什么?
问题369似乎表明它可以与rtlwifi驱动程序一起使用?