详细记录丨Realtek RTL8188FU WiFi 驱动移植
共 8985字,需浏览 18分钟
·
2021-04-19 10:41
1 参考资料
1、芯片数据手册:TL8188FCA.pdf
2、驱动移植手册:Quick_Start_Guide_for_Driver_Compilation_and_Installation.pdf
3、【正点原子】I.MX6U嵌入式Linux驱动开发指南V1.3.pdf
4、Linux 添加 WiFi 驱动:
https://blog.csdn.net/sbddbfm/article/details/101222266
5、还有一些其他前辈的教程,十分感谢!
2 环境介绍
1、使用的新唐的 NUC980 系列 MCU ;
2、Linux 内核版本:4.4.179 ;
3、交叉编译链版本
arm-none-linux-gnueabi-gcc
gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-29)
4、供应商提供的 WiFi 模块驱动源码;
3 驱动移植
1、将 RTL8188FU
驱动添加到 Linux
内核中;
在
drivers/net/wireless
路径新建文件夹realtek_new
;将驱动源码
RTL8188FU_Linux_v5.7.4_33085.20190626\driver\rtl8188FU_linux_v5.7.4_33085.20190419
解压后,放到realtek_new
文件夹中;修改文件夹名字为
rtl8188fu
;
2、修改 drivers/net/wireless/Kconfig
打开 drivers/net/wireless/Kconfig
,在文件最后一行添加
source "drivers/net/wireless/realtek_new/Kconfig"
3、修改 drivers/net/wireless/Makefile
打开 drivers/net/wireless/Makefile
,在文件最后一行添加
obj-y += realtek_new/
4、新增文件 drivers/net/wireless/realtek_new/Makefile
新增文件 Makefile
,添加以下内容,保存
obj-$(CONFIG_RTL8188FU) += rtl8188fu/
5、新增文件 drivers/net/wireless/realtek_new/Kconfig
新增文件 Kconfig
,添加以下内容,保存
menuconfig REALTEK_WIFI
tristate "Realtek wifi"
if REALTEK_WIFI
choice
prompt "select wifi type"
default RTL8189FU
config RTL8188FU
depends on REALTEK_WIFI
tristate "Realtek 8188FU USB WiFi"
endchoice
endif
6、关闭 Debug
功能
打开文件 drivers/net/wireless/realtek_new/rtl8188fu/Makefile
;第 88 行,将宏定义 CONFIG_RTW_DEBUG=y
改为CONFIG_RTW_DEBUG=n
;否则会打印很多调试信息,影响正常使用; 修改之后如下图所示:
87 ########################## Debug ###########################
88 CONFIG_RTW_DEBUG = n
89 # default log level is _DRV_INFO_ = 4,
90 # please refer to "How_to_set_driver_debug_log_level.doc" to set the available level.
91 CONFIG_RTW_LOG_LEVEL = 4
92 ######################## Wake On Lan ##########################
4 内核配置
1、配置 USB 支持设备
Device Drivers --->
[*] USB support --->
<*> Support for Host-side USB
<*> EHCI HCD (USB 2.0) support
<*> OHCI HCD (USB 1.1) support
<*> ChipIdea Highspeed Dual Role Controller
[*] ChipIdea host controller
[*] ChipIdea driver debug
2、配置支持 WiFi 设备
Device Drivers --->
[*] Network device support --->
[*] Wireless LAN --->
<*> IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)
[*] Support downloading firmware images with Host AP driver
[*] Support for non-volatile firmware download
![](https://filescdn.proginn.com/160739a7ebec6c48bb9f8553b7be75c4/cbb7fe6213454c8cf68911c95980e32f.webp)
3、配置支持 IEEE 802.11
[*] Networking support --->
-*- Wireless --->
[*] cfg80211 wireless extensions compatibility
<*> Generic IEEE 802.11 Networking Stack (mac80211)
![](https://filescdn.proginn.com/14f6d65aa373451ecb17667d860c848a/cd24e6df1aea33a7d0e3c29b84d16b59.webp)
4、配置 RTL8188FU 驱动
由于 RTL8188FU 无需加载额外的固件文件,故无需将驱动配置成模块; 直接将驱动编译进内核,这样开机就会自动初始化 RTL8188FU ,不需要启动后再手工加载驱动模块;
Device Drivers --->
[*] Network device support --->
[*] Wireless LAN --->
<*> Realtek wifi --->
--- Realtek wifi
<*> select wifi type (Realtek 8188FU USB WiFi) --->
5、在内核源码文件夹根路径,运行命令:
make uImage -j16
6、编译完成;
5 简单测试
1、将 WiFi 模块接入控制板;
2、使用新编译的内核,重新启动程序;
3、使用命令 ifconfig -a
测试;
4、如果可以看到 wlan0 网卡,则代表驱动可以正常工作;否则,请检查之前配置步骤是否有误;
5、我的测试结果如下:
[root]#ifconfig -a
dummy0 Link encap:Ethernet HWaddr 12:DE:F0:8F:D4:1B
BROADCAST NOARP 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)
eth0 Link encap:Ethernet HWaddr 40:00:02:B3:D2:34
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:336 errors:0 dropped:138 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:95476 (93.2 KiB) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 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:1
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 68:B9:D3:B2:90:C8
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)
好了,本期内容就是这样,祝您一切顺利,我们下期再见!