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am335x rtl8192cu usb wifi问题

xw li
Prodigy 70 points


接入usb wifi rtl8192cu，系统输出和查看系统log如下：

usb 1-1.1: USB disconnect, device number 3
usb 1-1.1: new high-speed USB device number 4 using musb-hdrc
usb 1-1.1: New USB device found, idVendor=0bda, idProduct=8176
usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1.1: Product: 802.11n WLAN Adapter
usb 1-1.1: Manufacturer: Realtek
usb 1-1.1: SerialNumber: 00e04c000001
rtl8192cu: MAC address: 00:1d:43:e0:20:8c
rtl8192cu: Board Type 0

  • 0
    Prodigy 70 points
    dmesg 查看消息如下
    rtl8192cu:rtl92cu_init_sw_vars():<0-0> Failed to request firmware! 
    rtlwifi:rtl_usb_probe():<0-0> Can't init_sw_vars. 

    root@am335x-evm:/etc# ifconfig wlan0 up 
    ifconfig: SIOCGIFFLAGS: No such device 

    lsusb ：
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 
    Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB 
    Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n 
    WLAN Adapter
  • 0 回复 xw li
    TI__Mastermind 35157 points

    请问您是否和usb wifi的厂商是否确认过该设备是否需要驱动。

  • 0 回复 Yaoming Qin
    Prodigy 70 points

    下载官方驱动，编译，wifif现在可以工作了。

    TI的4.6的SDK中的wifi驱动不能直接使用

  • 0 回复 xw li
    Intellectual 280 points

    我是从官网下载的驱动的，但是我插入设备后打印的信息是：

     [  854.331229] usb 1-1.2: USB disconnect, device number 5

    [  857.387702] usb 1-1.2: new high-speed USB device number 7 using musb-hdrc

    [  857.498862] usb 1-1.2: New USB device found, idVendor=0bda, idProduct=0179

    [  857.506239] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3

    [  857.514059] usb 1-1.2: Product: 802.11n NIC [  857.518537] usb 1-1.2: Manufacturer: Realtek

     

    加载驱动8192cu.ko的驱动时，打印的信息是：

    |root@android:/storage/usb1 # insmod 8192cu.ko ifname=wlan0 if2name=p2p0 

    [  340.570187] rtl8192cu driver version=v4.0.2_9000.20130911

     [  340.575968] build time: Jul 15 2016 01:16:26 [  340.581004] usbcore: registered new interface driver rtl8192cu

     

    感觉驱动根本没找设备，请问下你驱动如何修改的啊？

    我驱动只是修改了Makefile文件，其他的没动。