USB-WIFI RTL8188CU模块驱动
RTL8188CU模塊概述
Realtek的8188cu模塊WiFi是通過usb接口掛載設(shè)備。以下是我對模塊使用的所有開發(fā)工作。
Linux內(nèi)核驅(qū)動適配和編譯
由于芯片驅(qū)動官方已經(jīng)最高支持kernel Linux3.9版本、在對Linux3.14進(jìn)行移植時出現(xiàn)較多問題。期間出現(xiàn)了很多的坑。
內(nèi)核配置：
進(jìn)入內(nèi)核目錄，make menuconfig [*] Networking support —>? [*] Wireless —>?Device Drivers —>?
[*] Network device support —>?
Wireless LAN —>?
[*] Wireless LAN (IEEE 802.11)?
<*> IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)?
源碼編譯：
解壓源碼到kernel目錄
tar -xvf rtl8188C_8192C_usb_linux_v4.0.2_9000.20130911.tar.gz
????移動到內(nèi)核文件中
mv rtl8188C_8192C_usb_linux_v4.0.2_9000.20130911 sbc/am3352-sbc/src/am335x-linux-3.14.26/drivers/net/wireless/rtl8192cu
編譯出現(xiàn)的問題
直接make命令編譯 問題一： os_dep/linux/os_intfs.c:320:3: error: implicit declaration of function ‘create_proc_entry’ 原因：Linux 3.10版本中已經(jīng)去除了create_proc_entry函數(shù)。 解決方法：下載另一個文件：wget https://raw.github.com/raspberrypi/linux/rpi-3.10.y/drivers/net/wireless/rtl8192cu/os_dep/linux/os_intfs.c，將下載到的文件覆蓋原來的os_dep/linux/os_intfs.c。 問題二： ?在編譯驅(qū)動的時候，出現(xiàn)錯誤macro "__TIME__" might prevent reproducible builds [-Werror=date-time]， 解決辦法 只需在相應(yīng)的Makefile中添加 EXTRA_CFLAGS +=-Wno-error=date-time (不把該行為當(dāng)成錯誤) 或者 EXTRA_CFLAGS +=-Wno-date-time(不把該行為當(dāng)成警告) 便可解決該警告或者錯誤。 問題三： ERROR: "wireless_send_event" [drivers/net/wireless/rtl8192cu/8192cu.ko] undefined! 解決辦法： [*] Wireless LAN (IEEE 802.11)? <*> IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)?排除萬難、中與編譯成功生成驅(qū)動模塊： 8192cu.ko
無線工具tool編譯移植：
wpa_supplicant是wifi客戶端（client）加密認(rèn)證工具，和iwconfig不同，wpa_supplicant支持wep、wpa、wpa2等完整的加密認(rèn)證，而iwconfig只能支持wep。和wpa_supplocant相對應(yīng)的，ap端的加密認(rèn)證工具為hostapd。
iwconfig配置wep模式連接WiFi
解壓工具源碼安裝包 tar -xvf wireless_tools.30.rtl.tar.gz 更改交叉編譯工具編譯生成可執(zhí)行文件
在開發(fā)板上進(jìn)行配置
root@am335x-evm:/mnt/wifi# ifconfig
eth0 Link encap:Ethernet HWaddr 26:C7:3D:A0:40:61
inet addr:192.168.1.147 Bcast:0.0.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2294 errors:0 dropped:2 overruns:0 frame:0
TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:169639 (165.6 KiB) TX bytes:5634 (5.5 KiB)
Interrupt:56
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:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 B) TX bytes:700 (700.0 B)
root@am335x-evm:/mnt/wifi# ls
8192cu.ko iwconfig iwevent iwgetid iwlist iwpriv iwspy
添加驅(qū)動
root@am335x-evm:/mnt/wifi# insmod 8192cu.ko
[ 960.694600] rtl8192cu driver version=v4.0.2_9000.20130911
[ 960.700314] build time: Jan 24 2018 20:22:31
[ 960.706246]
[ 960.706246] usb_endpoint_descriptor(0):
[ 960.711844] bLength=7
[ 960.714309] bDescriptorType=5
[ 960.717430] bEndpointAddress=81
[ 960.720725] wMaxPacketSize=200
[ 960.723962] bInterval=0
[ 960.726529] RT_usb_endpoint_is_bulk_in = 1
[ 960.730835]
[ 960.730835] usb_endpoint_descriptor(1):
[ 960.736432] bLength=7
[ 960.738815] bDescriptorType=5
[ 960.741931] bEndpointAddress=2
[ 960.745151] wMaxPacketSize=200
[ 960.748356] bInterval=0
[ 960.750929] RT_usb_endpoint_is_bulk_out = 2
[ 960.755333]
[ 960.755333] usb_endpoint_descriptor(2):
[ 960.760915] bLength=7
[ 960.763312] bDescriptorType=5
[ 960.766426] bEndpointAddress=3
[ 960.769632] wMaxPacketSize=200
[ 960.772846] bInterval=0
[ 960.775418] RT_usb_endpoint_is_bulk_out = 3
[ 960.779807]
[ 960.779807] usb_endpoint_descriptor(3):
[ 960.785401] bLength=7
[ 960.787788] bDescriptorType=5
[ 960.790899] bEndpointAddress=84
[ 960.794331] wMaxPacketSize=40
[ 960.797453] bInterval=1
[ 960.800022] RT_usb_endpoint_is_int_in = 4, Interval = 1
[ 960.805534] nr_endpoint=4, in_num=2, out_num=2
[ 960.805534]
[ 960.811752] USB_SPEED_HIGH
[ 960.815172] CHIP TYPE: RTL8188C_8192C
[ 960.819076] register rtw_netdev_ops to netdev_ops
[ 960.824222] Chip Version ID: VERSION_NORMAL_TSMC_CHIP_88C.
[ 960.829991] RF_Type is 3!!
[ 960.836642] EEPROM type is E-FUSE
[ 960.840135] ====> ReadAdapterInfo8192C
[ 960.844372] Boot from EFUSE, Autoload OK !
[ 960.922000] EEPROMVID = 0x0bda
[ 960.925234] EEPROMPID = 0x8176
[ 960.928442] EEPROMCustomerID : 0x00
[ 960.932102] EEPROMSubCustomerID: 0x00
[ 960.935961] RT_CustomerID: 0x00
[ 960.939266] _ReadMACAddress MAC Address from EFUSE = 00:1d:43:30:1b:fc
[ 960.946139] EEPROMRegulatory = 0x0
[ 960.949710] _ReadBoardType(0)
[ 960.952847] BT Coexistance = disable
[ 960.956603] mlmepriv.ChannelPlan = 0x02
[ 960.960635] _ReadPSSetting...bHWPwrPindetect(0)-bHWPowerdown(0) ,bSupportRemoteWakeup(0)
[ 960.969147] ### PS params=> power_mgnt(1),usbss_enable(0) ###
[ 960.975289] ### AntDivCfg(0)
[ 960.978310] readAdapterInfo_8192CU(): REPLACEMENT = 1
[ 960.983627] <==== ReadAdapterInfo8192C in 150 ms
[ 960.989728] rtw_macaddr_cfg MAC Address = 00:1d:43:30:1b:fc
[ 960.995732] bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0
[ 961.008437] _rtw_drv_register_netdev, MAC Address (if1) = 00:1d:43:30:1b:fc
[ 961.020251] usbcore: registered new interface driver rtl8192cu
root@am335x-evm:/mnt/wifi# ifconfig
eth0 Link encap:Ethernet HWaddr 26:C7:3D:A0:40:61
inet addr:192.168.1.147 Bcast:0.0.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9567 errors:0 dropped:2 overruns:0 frame:0
TX packets:3781 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11071491 (10.5 MiB) TX bytes:268210 (261.9 KiB)
Interrupt:56
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:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 B) TX bytes:700 (700.0 B)
啟動網(wǎng)卡
root@am335x-evm:/mnt/wifi# ifconfig wlan0 up
[ 1002.603095] +871x_drv - drv_open, bup=0
[ 1002.610055] ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
[ 1002.616726] FirmwareDownload92C accquire FW from embedded image
[ 1002.622978] fw_ver=v88, fw_subver=2, sig=0x88c0
[ 1002.649241] fw download ok!
[ 1002.652205] Set RF Chip ID to RF_6052 and RF type to 1T1R.
[ 1002.966153] IQK:Start!!!
[ 1002.975077] Path A Rx IQK fail!!
[ 1002.980110] Path A IQK Success!!
[ 1002.988366] Path A Rx IQK fail!!
[ 1002.993931] Path A IQK Success!!
[ 1002.999644] IQK: final_candidate is 0
[ 1003.003565] IQK: RegE94=104 RegE9C=15 RegEA4=ff RegEAC=1 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
Path A IQ Calibration Success !
[ 1003.124495] pdmpriv->TxPowerTrackControl = 1
[ 1003.131213] rtl8192cu_hal_init in 520ms
[ 1003.155214] MAC Address = 00:1d:43:30:1b:fc
[ 1003.160049] -871x_drv - drv_open, bup=1
root@am335x-evm:/mnt/wifi# [ 1005.155132] ==>rtw_ps_processor .fw_state(0)
[ 1005.159654] ==>ips_enter cnts:1
[ 1005.163013] ===> rtw_ips_pwr_down...................
[ 1005.169992] ====> rtw_ips_dev_unload...
[ 1005.191302] usb_read_port_cancel
[ 1005.195138] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
[ 1005.206415] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
[ 1005.217664] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
[ 1005.228893] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1)
[ 1005.239957] usb_write_port_cancel
[ 1005.244091] ==> rtl8192cu_hal_deinit
[ 1005.247950] bkeepfwalive(0)
[ 1005.250883] card disble without HWSM...........
[ 1005.259031] <=== rtw_ips_pwr_down..................... in 90ms
root@am335x-evm:/mnt/wifi# ifconfig
eth0 Link encap:Ethernet HWaddr 26:C7:3D:A0:40:61
inet addr:192.168.1.147 Bcast:0.0.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9634 errors:0 dropped:2 overruns:0 frame:0
TX packets:3783 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11077353 (10.5 MiB) TX bytes:268336 (262.0 KiB)
Interrupt:56
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:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 B) TX bytes:700 (700.0 B)
wlan0 Link encap:Ethernet HWaddr 00:1D:43:30:1B:FC
UP 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)
搜索周圍WiFi AP點
root@am335x-evm:/mnt/wifi# ifconfig wlan0 192.168.1.166
root@am335x-evm:/mnt/wifi# ./iwlist wlan0 scanning
[ 1251.243269] _rtw_pwr_wakeup call ips_leave....
[ 1251.247992] ==>ips_leave cnts:1
[ 1251.251292] ===> rtw_ips_pwr_up..............
[ 1251.256064] ===> ips_netdrv_open.........
[ 1251.264501] ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
[ 1251.271108] FirmwareDownload92C accquire FW from embedded image
[ 1251.277517] fw_ver=v88, fw_subver=2, sig=0x88c0
[ 1251.303432] fw download ok!
[ 1251.306388] Set RF Chip ID to RF_6052 and RF type to 1T1R.
[ 1251.626253] IQK:Start!!!
[ 1251.635242] Path A Rx IQK fail!!
[ 1251.640332] Path A Rx IQK fail!!
[ 1251.643774] Path A IQK Only Tx Success!!
[ 1251.652991] Path A Rx IQK fail!!
[ 1251.658083] Path A Rx IQK fail!!
[ 1251.661478] Path A IQK Only Tx Success!!
[ 1251.668513] IQK: final_candidate is 0
[ 1251.672379] IQK: RegE94=104 RegE9C=14 RegEA4=0 RegEAC=0 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
Path A IQ Calibration Success !
[ 1251.685692] _PHY_PathAFillIQKMatrix only Tx OK
[ 1251.794453] pdmpriv->TxPowerTrackControl = 1
[ 1251.801205] rtl8192cu_hal_init in 540ms
[ 1251.825412] <=== rtw_ips_pwr_up.............. in 580ms
[ 1251.830990] ==> ips_leave.....LED(0x00028080)...
[ 1253.135544] survey done event(12) band:0 for wlan0
wlan0 Scan completed :
Cell 01 - Address: 00:6B:8E:F1:6F:70
ESSID:"@PHICOMM_68"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.427 GHz (Channel 4)
Encryption key:on
Bit Rates:300 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Quality=58/100 Signal level=57/100
Cell 02 - Address: B0:95:8E:5A:1C:18
ESSID:"huchengwei"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:300 Mb/s
Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f202
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Extra:rsn_ie=30140100000fac040100000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=10/100
Cell 03 - Address: EC:26:CA:41:63:FD
ESSID:"deutschwerkstatt"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f202
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Extra:rsn_ie=30140100000fac040100000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=23/100
Cell 04 - Address: DC:FE:18:14:74:BE
ESSID:"YATIGERS-2.4G"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:300 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Quality=66/100 Signal level=82/100
連接WiFi
root@am335x-evm:/mnt/wifi# ./iwconfig wlan0 key YTGS25257758
Error for wireless request "Set Encode" (8B2A) :
invalid argument "YTGS25257758".
root@am335x-evm:/mnt/wifi# ./iwconfig wlan0 essid "YATIGERS-2.4G"
[ 1421.483915] _rtw_pwr_wakeup call ips_leave....
[ 1421.488626] ==>ips_leave cnts:2
[ 1421.491926] ===> rtw_ips_pwr_up..............
[ 1421.496744] ===> ips_netdrv_open.........
[ 1421.505563] ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
[ 1421.512173] FirmwareDownload92C accquire FW from embedded image
[ 1421.518589] fw_ver=v88, fw_subver=2, sig=0x88c0
[ 1421.544544] fw download ok!
[ 1421.547499] Set RF Chip ID to RF_6052 and RF type to 1T1R.
[ 1421.866093] IQK:Start!!!
[ 1421.875145] Path A IQK Success!!
[ 1421.883112] Path A Rx IQK fail!!
[ 1421.888205] Path A Rx IQK fail!!
[ 1421.891601] Path A IQK Only Tx Success!!
[ 1421.902763] Path A IQK Success!!
[ 1421.908461] IQK: final_candidate is 0
[ 1421.912331] IQK: RegE94=104 RegE9C=14 RegEA4=ff RegEAC=0 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
Path A IQ Calibration Success !
[ 1422.034466] pdmpriv->TxPowerTrackControl = 1
[ 1422.041203] rtl8192cu_hal_init in 540ms
[ 1422.065457] <=== rtw_ips_pwr_up.............. in 580ms
[ 1422.071035] ==> ips_leave.....LED(0x00028080)...
[ 1422.075945] =>rtw_wx_set_essid
[ 1422.079158] ssid=YATIGERS-2.4G, len=13
[ 1422.083503] Set SSID under fw_state=0x00000008
[ 1422.088213] [by_bssid:0][assoc_ssid:YATIGERS-2.4G][to_roaming:0] new candidate: YATIGERS-2.4G(dc:fe:18:14:74:be, ch11) rssi:-58
[ 1422.100317] rtw_select_and_join_from_scanned_queue: candidate: YATIGERS-2.4G(dc:fe:18:14:74:be, ch:11)
[ 1422.110203] link to Ralink AP
[ 1422.113385] <=rtw_wx_set_essid, ret 0
root@am335x-evm:/mnt/wifi# [ 1422.121616] set ch/bw before connected
[ 1422.125868] start_join_set_ch_bw: ch=11, bwmode=1, ch_offset=2
[ 1422.217255] link to Ralink AP
[ 1422.267760] OnAuthClient
[ 1422.270479] network.SupportedRates[0]=82
[ 1422.274601] network.SupportedRates[1]=84
[ 1422.278719] network.SupportedRates[2]=8B
[ 1422.282836] network.SupportedRates[3]=96
[ 1422.286954] network.SupportedRates[4]=12
[ 1422.291070] network.SupportedRates[5]=24
[ 1422.295188] network.SupportedRates[6]=48
[ 1422.299305] network.SupportedRates[7]=6C
[ 1422.303422] network.SupportedRates[8]=0C
[ 1422.307540] network.SupportedRates[9]=18
[ 1422.311658] network.SupportedRates[10]=30
[ 1422.315866] network.SupportedRates[11]=60
[ 1422.320079] bssrate_len = 12
[ 1422.342232] OnAssocRsp
[ 1422.344765] report_join_res(4)
[ 1422.348014] rtw_joinbss_update_network
[ 1422.351961] +rtw_update_ht_cap()
[ 1422.355382] rtw_joinbss_update_stainfo
[ 1422.359619] OnAction_back
[ 1422.362388] OnAction_back, action=0
[ 1422.366117] issue_action_BA, category=3, action=1, status=0
[ 1422.372152] HW_VAR_BASIC_RATE: BrateCfg(0x15d)
[ 1422.379523] WMM(0): 0, a42b
[ 1422.382886] WMM(1): 0, a44f
[ 1422.385902] WMM(2): 0, 5e4322
[ 1422.389088] WMM(3): 0, 2f3222
[ 1422.392211] HTOnAssocRsp
[ 1422.398868] update raid entry, mask=0xfffff, arg=0x80
[ 1422.405371] rtl8192c_set_FwJoinBssReport_cmd mstatus(1)
[ 1422.411380] SetFwRsvdPagePkt
[ 1422.415505] Set RSVD page location to Fw.
[ 1422.420276] =>mlmeext_joinbss_event_callback
[ 1427.075863] rtl8192c_dm_RF_Saving(): RF_Save
[ 1431.072987] rtw_set_ps_mode(): Enter 802.11 power save mode...
[ 1431.079829] rtl8192c_dm_RF_Saving(): RF_Normal
[ 1431.084564] rtl8192c_set_FwPwrMode_cmd(): Mode = 1, SmartPS = 2
root@am335x-evm:/mnt/wifi# ./iwconfig wlan0
[ 1499.280772] rtw_wx_get_rts, rts_thresh=2347
[ 1499.286239] rtw_wx_get_frag, frag_len=2346
wlan0 IEEE 802.11bgn ESSID:"YATIGERS-2.4G" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:2.462 GHz Access Point: DC:FE:18:14:74:BE
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=99/100 Signal level=67/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
屏蔽eth0來試著ping網(wǎng)關(guān)
root@am335x-evm:/mnt/wifi# ./iwconfig wlan0
[ 1499.280772] rtw_wx_get_rts, rts_thresh=2347
[ 1499.286239] rtw_wx_get_frag, frag_len=2346
wlan0 IEEE 802.11bgn ESSID:"YATIGERS-2.4G" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:2.462 GHz Access Point: DC:FE:18:14:74:BE
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=99/100 Signal level=67/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
root@am335x-evm:/mnt/wifi# ifconfig
eth0 Link encap:Ethernet HWaddr 26:C7:3D:A0:40:61
inet addr:192.168.1.147 Bcast:0.0.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10239 errors:0 dropped:7 overruns:0 frame:0
TX packets:3881 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11213377 (10.6 MiB) TX bytes:278688 (272.1 KiB)
Interrupt:56
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:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 B) TX bytes:700 (700.0 B)
wlan0 Link encap:Ethernet HWaddr 00:1D:43:30:1B:FC
inet addr:192.168.1.166 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:335 errors:0 dropped:339 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:40400 (39.4 KiB) TX bytes:0 (0.0 B)
root@am335x-evm:/mnt/wifi# ifconfig eth0 down
root@am335x-evm:/mnt/wifi# ifconfig
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:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 B) TX bytes:700 (700.0 B)
wlan0 Link encap:Ethernet HWaddr 00:1D:43:30:1B:FC
inet addr:192.168.1.166 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:375 errors:0 dropped:379 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:45253 (44.1 KiB) TX bytes:0 (0.0 B)
root@am335x-evm:/mnt/wifi# ping 192.168.1.1
[ 1606.213877] rtw_set_ps_mode(): Busy Traffic , Leave 802.11 power save..
[ 1606.221047] rtl8192c_set_FwPwrMode_cmd(): Mode = 0, SmartPS = 0
[ 1606.227764] OnAction_back
[ 1606.230533] OnAction_back, action=0
[ 1606.234249] issue_action_BA, category=3, action=1, status=0
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: seq=0 ttl=64 time=26.190 ms
64 bytes from 192.168.1.1: seq=1 ttl=64 time=13.609 ms
64 bytes from 192.168.1.1: seq=2 ttl=64 time=9.448 ms
64 bytes from 192.168.1.1: seq=3 ttl=64 time=13.246 ms
64 bytes from 192.168.1.1: seq=4 ttl=64 time=19.149 ms
64 bytes from 192.168.1.1: seq=5 ttl=64 time=25.671 ms
64 bytes from 192.168.1.1: seq=6 ttl=64 time=15.957 ms
--- 192.168.1.1 ping statistics ---
22 packets transmitted, 22 packets received, 0% packet loss
round-trip min/avg/max = 6.152/22.831/183.121 ms
用hostapd配置WiFi作為AP接入點
hostapd是一款運行在用戶態(tài)軟件，能夠為認(rèn)證服務(wù)器提供管理接入點。下面是無線網(wǎng)卡常見的工作模式及其作用。
顯然，平時我們的計算機的無線網(wǎng)卡一般工作在Managed模式，而我們平常使用的路由器的無線網(wǎng)卡則是一般工作在Master模式。我們借助hostapd讓我們計算機的無線網(wǎng)卡更換模式，使其工作在Master模式，這樣我們的計算機就能夠成為一個無線接入點從而為其他設(shè)備提供服務(wù)。
移植hostapd
libnl庫的安裝
libnl源碼官網(wǎng)http://www.infradead.org/~tgr/libnl/
????下載1.1版本的、libnl-1.1.4.tar.gz
????解壓
????tar -xvf libnl-1.1.4.tar.gz
????mkdir install
????配置安裝目錄
????./configure -prefix=/home/fluency/workspace/wifi/libnl-1.1.4/install
????編譯
????make CC=arm-linux-gnuabihf-gcc
????make install
openssl庫的安裝
OpenSSL官網(wǎng)https://www.openssl.org/source/old/0.9.x/
????下載openssl-0.9.8e.tar.gz
????解壓配置
????tar -xvf openssl-0.9.8e.tar.gz
????mkdir install
????安裝目錄
????./config -prefix=/home/fluency/workspace/wifi/openssl-0.9.8e/install/
????交叉編譯工具
????./config os/compiler:arm-linux-gnueabihf-gcc
????make
????make install
hostapd的編譯
????到官網(wǎng)下載源碼http://w1.fi/releases/snapshots/ hostapd-0.8-snapshot.tar.gz
?????解壓配置
????tar -xvf hostapd-0.8-snapshot.tar.gz
????cp deconfig .config
????vim .config
修改Makefile
指定libnl、ssl的頭文件和庫文件路徑
關(guān)于Relocations in generic ELF (EM: 40)的解決辦法
然后命令編譯（指定編譯器和連接工具）
make CC=arm-linux-gnueabihf-gcc LD=arm-linux-gnueabihf-ld
移植
hostapd hostapd_cli 可執(zhí)行文件
運行中出現(xiàn)庫文件缺失（進(jìn)行cp）
fluency@ubuntu:~/workspace/wifi/libnl-1.1.4/install/lib$ cp libnl.so* /home/fluency/nfsboot/wifi/
sudo ln -s 源文件 目標(biāo)文件 （為庫文件創(chuàng)建連接）
命令執(zhí)行AP設(shè)置
/*---------配置文件AM335Wifi.conf----------------------*/
interface=wlan0
ssid=Fluency
channel=9
hw_mode=g
ignore_broadcast_ssid=0
auth_algs=1
wpa=3
wpa_passphrase=12345679
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
/*------------------------------------------*/
root@am335x-evm:/mnt/wifi# ./hostapd ./AM335Wifi.conf -B
Configuration file: ./hostapAP.conf
drv->ifindex=4
l2_sock_recv==l2_sock_xmit=0x0x5[28441.760693] _rtw_pwr_wakeup call ips_leave....
2630
[28441.768844] ==>ips_leave cnts:3
[28441.772652] ===> ?rtw_ips_pwr_up..............
[28441.777335] ===> ips_netdrv_open.........
[28441.786126] ?===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
[28441.792915] FirmwareDownload92C accquire FW from embedded image
[28441.799145] fw_ver=v88, fw_subver=2, sig=0x88c0
[28441.824193] fw download ok!
[28441.827141] Set RF Chip ID to RF_6052 and RF type to 1T1R.
[28442.136384] IQK:Start!!!
[28442.145387] Path A IQK Success!!
[28442.153503] Path A IQK Success!!
[28442.159184] IQK: final_candidate is 0
[28442.163094] IQK: RegE94=104 RegE9C=14 RegEA4=ff RegEAC=1 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
?Path A IQ Calibration Success !
[28442.284387] pdmpriv->TxPowerTrackControl = 1
[28442.291139] rtl8192cu_hal_init in 510ms
[28442.315333] <=== ?rtw_ips_pwr_up.............. in 540ms
[28442.320912] ==> ips_leave.....LED(0x00028080)...
[28442.325816] set_mode = IW_MODE_MASTER
[28442.330516] hw_var_set_opmode()-4234 mode = 3
[28442.335576] rtw_hostapd_sta_flush
[28442.340158] rtw_sta_flush(wlan0)
[28442.343639] issue_deauth to ff:ff:ff:ff:ff:ff
+rtl871x_sta_deauth_ops, ff:ff:ff:ff:ff:ff is de[28442.349304] rtw_set_encryption
auth, reason=2
rtl871x_set_key_ops
[28442.356518] clear default encryption keys, keyid=0
rtl871x_set_key_ops
[28442.366165] rtw_set_encryption
[28442.371042] clear default encryption keys, keyid=1
rtl871x_set_key_ops
[28442.376983] rtw_set_encryption
[28442.381887] clear default encryption keys, keyid=2
rtl871x_set_key_ops
[28442.387511] rtw_set_encryption
[28442.392466] clear default encryption keys, keyid=3
Using interface wlan0 with hwaddr 00:1d:43:30:1b:fc and ssid 'YOUR_SSID'
rtl871x_set_wps_assoc_resp_ie
[28442.551185] rtw_set_wps_assoc_resp, len=14
rtl871x_set_wps_beacon_ie
[28442.558408] rtw_set_wps_beacon, len=14
rtl871x_set_wps_probe_resp_ie
[28442.564877] rtw_set_wps_probe_resp, len=14
rtl871x_set_key_ops
[28442.580558] rtw_set_encryption
[28442.585520] rtw_set_encryption, set group_key, TKIP
[28442.590653] set_group_key
[28442.594451] SetHwReg8192CU, 5126, RCR= 7000228e?
rtl871x_set_beacon_ops
[28442.599478] rtw_set_beacon, len=105
[28442.605184] rtw_check_beacon_data, len=91
[28442.613419] CH=9, BW=0, offset=0
[28442.617047] HW_VAR_BASIC_RATE: BrateCfg(0x15d)
[28442.623180] update_bmc_sta, mask=0x6000000f, arg=0x81
rtl871x_set_hidden_ssid ignore_broadcast_ssid:0,[28442.628976] rtw_set_hidden_ssid(wlan0) ignore_broadcast_ssid:0, YOUR_SSID,9 YOUR_SSID,9rtl871x_set_acl
[28447.325844] rtl8192c_dm_RF_Saving(): RF_Normal
[28519.433519] IQK:Start!!!
[28519.442255] Path A IQK Success!!
[28519.451203] Path A IQK Success!!
[28519.457527] IQK: final_candidate is 0
[28519.461397] IQK: RegE94=103 RegE9C=11 RegEA4=fe RegEAC=2 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
?Path A IQ Calibration Success !
配置DHCP服務(wù)
root@am335x-evm:/mnt/wifi#udhcpd ./udhcpd.conf/*---------配置文件udhcpd.conf----------------------*/
start ? 192.168.63.100
end ? ? ? ? ? ? 192.168.63.254
interface ? ? ? wlan0
opt ? ? dns ? ? 192.168.10.2 192.168.10.10
option ?subnet ?255.255.255.0
opt ? ? router ?192.168.63.70
opt ? ? wins ? ?192.168.63.10
option ?dns ? ? 129.219.13.81 ? # appened to above DNS servers for a total of 3
option ?domain ?local
option ?lease ? 864000 ? ? ? ? ?# 10 days of seconds
/*------------------------------------------*/ 連接加入AP熱點 name為Fluency passwd為12345679 可以看到分配的ID為192.168.2.100
WiFi性能測試
用iperf命令 啟動tcp服務(wù)器
手機軟件netwroktool
然后server端就能看到測試帶寬信息
以上完成對WiFi驅(qū)動的所有工作、設(shè)備就有了一個無線網(wǎng)卡啦
總結(jié)
以上是生活随笔為你收集整理的USB-WIFI RTL8188CU模块驱动的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： 杀毒软件评测
- 下一篇： Mac Os微信多开小助手安装教程