“USB 无线网卡测试”的版本间的差异

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第26行： 第26行：
 
|orangepi@orangepi:~$ '''dmesg'''<br>
 
|orangepi@orangepi:~$ '''dmesg'''<br>
 
......<br>
 
......<br>
−
[83.438901]usb2-1:newhigh-speedUSBdevicenumber2usingehci-platform<br>
+
[ 83.438901] usb 2-1: new high-speed USB device number 2 using ehci-platform <br>
−
[83.588375]usb2-1:NewUSBdevicefound,idVendor=0bda,idProduct=b720,<br>
+
[ 83.588375] usb 2-1: New USB device found, idVendor=0bda, idProduct=b720, <br>
−
bcdDevice=2.00<br>
+
bcdDevice= 2.00 <br>
−
[83.588403]usb2-1:NewUSBdevicestrings:Mfr=1,Product=2,SerialNumber=3<br>
+
[ 83.588403] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 <br>
−
[83.588422]usb2-1:Product:802.11nWLANAdapter<br>
+
[ 83.588422] usb 2-1: Product: 802.11n WLAN Adapter <br>
−
[83.588443]usb2-1:Manufacturer:Realtek<br>
+
[ 83.588443] usb 2-1: Manufacturer: Realtek <br>
−
[83.588460]usb2-1:SerialNumber:00e04c000001<br>
+
[ 83.588460] usb 2-1: SerialNumber: 00e04c000001 <br>
−
[83.601974]Bluetooth:hci0:RTL:examininghci_ver=06hci_rev=000blmp_ver=06<br>
+
[ 83.601974] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 <br>
−
lmp_subver=8723<br>
+
lmp_subver=8723 <br>
−
[83.603894]Bluetooth:hci0:RTL:rom_versionstatus=0version=1<br>
+
[ 83.603894] Bluetooth: hci0: RTL: rom_version status=0 version=1 <br>
−
[83.603920]Bluetooth:hci0:RTL:loadingrtl_bt/rtl8723b_fw.bin<br>
+
[ 83.603920] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin <br>
−
[83.610108]Bluetooth:hci0:RTL:loadingrtl_bt/rtl8723b_config.bin<br>
+
[ 83.610108] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin <br>
−
[83.611274]Bluetooth:hci0:RTL:cfg_sz68,totalsz22564<br>
+
[ 83.611274] Bluetooth: hci0: RTL: cfg_sz 68, total sz 22564 <br>
−
[83.658494]rtk_btusb:RealtekBluetoothUSBdriverver<br>
+
[ 83.658494] rtk_btusb: Realtek  Bluetooth  USB  driver  ver <br>
 
3.1.6d45ddf.20220519-142432<br>
 
3.1.6d45ddf.20220519-142432<br>
−
[83.658651]usbcore:registerednewinterfacedriverrtk_btusb<br>
+
[ 83.658651] usbcore: registered new interface driver rtk_btusb <br>
−
[83.667124]usb2-1:ThisRealtekUSBWiFidongle(0x0bda:0xb720)isuntested!<br>
+
[ 83.667124] usb 2-1: This Realtek USB WiFi dongle (0x0bda:0xb720) is untested! <br>
−
[83.667137]usb2-1:PleasereportresultstoJes.Sorensen@gmail.com<br>
+
[ 83.667137] usb 2-1: Please report results to Jes.Sorensen@gmail.com <br>
−
[83.890140]usb2-1:Vendor:Realtek<br>
+
[ 83.890140] usb 2-1: Vendor: Realtek <br>
−
[83.890153]usb2-1:Product:802.11nWLANAdapter<br>
+
[ 83.890153] usb 2-1: Product: 802.11n WLAN Adapter <br>
−
[83.890159]usb2-1:rtl8723bu_parse_efuse:dumpingefuse(0x200bytes):<br>
+
[ 83.890159] usb 2-1: rtl8723bu_parse_efuse: dumping efuse (0x200 bytes): <br>
−
......<br>
+
...... <br>
−
[83.890412]usb2-1:RTL8723BUrevE(SMIC)1T1R,TXqueues3,WiFi=1,BT=1,<br>
+
[ 83.890412] usb 2-1: RTL8723BU rev E (SMIC) 1T1R, TX queues 3, WiFi=1, BT=1, <br>
−
GPS=0,HIPA=0<br>
+
GPS=0, HI PA=0 <br>
−
[83.890417]usb2-1:RTL8723BUMAC:00:13:ef:f4:58:ae<br>
+
[ 83.890417] usb 2-1: RTL8723BU MAC: 00:13:ef:f4:58:ae <br>
−
[83.890421]usb2-1:rtl8xxxu:Loadingfirmwarertlwifi/rtl8723bu_nic.bin<br>
+
[ 83.890421] usb 2-1: rtl8xxxu: Loading firmware rtlwifi/rtl8723bu_nic.bin <br>
−
[83.895289]usb2-1:Firmwarerevision35.0(signature0x5301)<br>
+
[ 83.895289] usb 2-1: Firmware revision 35.0 (signature 0x5301)<br>  
−
[84.050893]Bluetooth:hci0:RTL:fwversion0x0e2f9f73<br>
+
[ 84.050893] Bluetooth: hci0: RTL: fw version 0x0e2f9f73 <br>
−
[84.266905]Bluetooth:RFCOMMTTYlayerinitialized<br>
+
[ 84.266905] Bluetooth: RFCOMM TTY layer initialized <br>
−
[84.266949]Bluetooth:RFCOMMsocketlayerinitialized<br>
+
[ 84.266949] Bluetooth: RFCOMM socket layer initialized <br>
−
[84.266999]Bluetooth:RFCOMMver1.11<br>
+
[ 84.266999] Bluetooth: RFCOMM ver 1.11 <br>
−
[84.884270]usbcore:registerednewinterfacedriverrtl8xxxu<br>
+
[ 84.884270] usbcore: registered new interface driver rtl8xxxu <br>
−
[84.912046]rtl8xxxu2-1:1.2wlx0013eff458ae:renamedfromwlan0<br>
+
[ 84.912046] rtl8xxxu 2-1:1.2 wlx0013eff458ae: renamed from wlan0<br>
 
|}
 
|}
 
4) 然后通过 '''sudo ifconfig''' 命令可以看到 RTL8723BU WIFI 的设备节点，WIFI 的连接和测试方法请参看 <span style="color:#0066CC;">[[WIFI 连接测试 | WIFI 连接测试]]</span>一节，这里不再赘述<br>
 
4) 然后通过 '''sudo ifconfig''' 命令可以看到 RTL8723BU WIFI 的设备节点，WIFI 的连接和测试方法请参看 <span style="color:#0066CC;">[[WIFI 连接测试 | WIFI 连接测试]]</span>一节，这里不再赘述<br>
第65行： 第65行：
 
|orangepi@orangepi:~$ '''sudo ifconfig wlx0013eff458ae'''<br>
 
|orangepi@orangepi:~$ '''sudo ifconfig wlx0013eff458ae'''<br>
 
wlx0013eff458ae: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500<br>
 
wlx0013eff458ae: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500<br>
−
ether 00:13:ef:f4:58:ae txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B)<br>
+
:ether 00:13:ef:f4:58:ae txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B)<br>
−
RX errors 0 dropped 0 overruns 0 frame 0<br>
+
:RX errors 0 dropped 0 overruns 0 frame 0<br>
−
TX packets 0 bytes 0 (0.0 B)
+
:TX packets 0 bytes 0 (0.0 B)<br>
 +
:TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
 
|}
 
|}
 
5) 然后通过 '''hciconfig''' 命令可以看到 USB 的蓝牙设备<br>
 
5) 然后通过 '''hciconfig''' 命令可以看到 USB 的蓝牙设备<br>
第75行： 第76行：
 
orangepi@orangepi:~$ '''hciconfig'''<br>
 
orangepi@orangepi:~$ '''hciconfig'''<br>
 
hci0: Type: Primary Bus: '''<span style="color:#FF0000">USB</span>'''<br>
 
hci0: Type: Primary Bus: '''<span style="color:#FF0000">USB</span>'''<br>
−
BD Address: 00:13:EF:F4:58:AE ACL MTU: 820:8 SCO MTU: 255:16 DOWN<br>
+
:BD Address: 00:13:EF:F4:58:AE ACL MTU: 820:8 SCO MTU: 255:16 <br>
−
RX bytes:1252 acl:0 sco:0 events:125 errors:0<br>
+
:DOWN<br>
−
TX bytes:23307 acl:0 sco:0 commands:125 errors:0
+
:RX bytes:1252 acl:0 sco:0 events:125 errors:0<br>
 +
:TX bytes:23307 acl:0 sco:0 commands:125 errors:0
 
|}
 
|}
 
6) 在桌面中也可以看到出现了蓝牙图标，此时蓝牙还未打开，所以会显示一个红色的 '''<span style="color:#FF0000">x</span>'''<br><br>
 
6) 在桌面中也可以看到出现了蓝牙图标，此时蓝牙还未打开，所以会显示一个红色的 '''<span style="color:#FF0000">x</span>'''<br><br>
第92行： 第94行：
 
{| class="wikitable" style="width:800px;"  
 
{| class="wikitable" style="width:800px;"  
 
|-
 
|-
−
|orangepi@orangepi:~$ '''lsmod'''
+
|orangepi@orangepi:~$ '''lsmod'''<br>
−
{| class="wikitable" style="width:800px;"
+
<span style="margin-right: 150px;">Module</span><span style="margin-right: 50px;">Size </span><span style="margin-right: 45px;">Used by </span><br>
−
|-
+
<span style="margin-right: 150px;">8821cu </span><span style="margin-right: 50px;">1839104 </span><span style="margin-right: 50px;">0</span><br>
−
| Module || Size || Used by
 
−
|-
 
−
| 8821cu || 1839104 || 0
 
−
|}
 
 
|}
 
|}
 
3) 通过 dmesg 命令可以看到 RTL8811 模块的加载信息<br>
 
3) 通过 dmesg 命令可以看到 RTL8811 模块的加载信息<br>
第109行： 第107行：
 
[ 118.767219] usb 2-1: Manufacturer: Realtek<br>
 
[ 118.767219] usb 2-1: Manufacturer: Realtek<br>
 
[ 118.767235] usb 2-1: SerialNumber: 123456<br>
 
[ 118.767235] usb 2-1: SerialNumber: 123456<br>
−
[ 119.500530] usbcore: registered new interface driver rtl8821cu
+
[ 119.500530] usbcore: registered new interface driver rtl8821cu<br>
 +
[      119.525498] rtl8821cu 2-1:1.0 wlx1cbfced9d260: renamed from wlan0
 
|}
 
|}
 
4) 然后通过 '''sudo ifconfig''' 命令可以看到 WIFI 的设备节点，WIFI 的连接和测试方法请参看 <span style="color:#0066CC;">[[WIFI 连接测试 | WIFI 连接测试]]</span>一节，这里不再赘述<br>
 
4) 然后通过 '''sudo ifconfig''' 命令可以看到 WIFI 的设备节点，WIFI 的连接和测试方法请参看 <span style="color:#0066CC;">[[WIFI 连接测试 | WIFI 连接测试]]</span>一节，这里不再赘述<br>
第116行： 第115行：
 
|orangepi@orangepi:~$ '''sudo ifconfig wlx1cbfced9d260'''<br>
 
|orangepi@orangepi:~$ '''sudo ifconfig wlx1cbfced9d260'''<br>
 
wlx1cbfced9d260: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 <br>
 
wlx1cbfced9d260: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 <br>
−
ether 1c:bf:ce:d9:d2:60 txqueuelen 1000 (Ethernet)<br>
+
:ether 1c:bf:ce:d9:d2:60 txqueuelen 1000 (Ethernet)<br>
−
RX packets 0 bytes 0 (0.0 B)<br>
+
:RX packets 0 bytes 0 (0.0 B)<br>
−
RX errors 0 dropped 0 overruns 0 frame 0<br>
+
:RX errors 0 dropped 0 overruns 0 frame 0<br>
−
TX packets 0 bytes 0 (0.0 B)
+
:TX packets 0 bytes 0 (0.0 B)
 +
:TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br>
 
|}
 
|}
  
第143行： 第143行：
 
{| class="wikitable" style="width:800px;"  
 
{| class="wikitable" style="width:800px;"  
 
|-
 
|-
−
|orangepi@orangepi:~$ '''lsmod'''
+
|orangepi@orangepi:~$ '''lsmod'''<br>
−
{| class="wikitable" style="width:800px;"
+
<span style="margin-right: 150px;">Module</span><span style="margin-right: 50px;">Size </span><span style="margin-right: 45px;">Used by </span><br>
−
|-
+
<span style="margin-right: 150px;">8821cu</span><span style="margin-right: 50px;">1839104 </span><span style="margin-right: 50px;">0</span><br>
−
| Module || Size || Used by
+
<span style="margin-right: 140px;">rtk_btusb </span><span style="margin-right: 50px;">61440 </span><span style="margin-right: 30px;">0</span><br>
−
|-
 
−
| 8821cu || 1839104 || 0
 
−
|-
 
−
| rtk_btusb || 61440 || 0
 
−
|}
 
 
|}
 
|}
 
4) 通过 dmesg 命令可以看到 rtl8821cu 模块的加载信息<br>
 
4) 通过 dmesg 命令可以看到 rtl8821cu 模块的加载信息<br>
第184行： 第179行：
 
|orangepi@orangepi:~$ '''sudo ifconfig wlx90de80521825'''<br>
 
|orangepi@orangepi:~$ '''sudo ifconfig wlx90de80521825'''<br>
 
wlx90de80521825: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500<br>
 
wlx90de80521825: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500<br>
−
ether 00:13:ef:f4:58:ae txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B)<br>
+
:ether 00:13:ef:f4:58:ae txqueuelen 1000 (Ethernet) <br>
−
RX errors 0 dropped 0 overruns 0 frame 0<br>
+
:RX packets 0 bytes 0 (0.0 B)<br>
−
TX packets 0 bytes 0 (0.0 B)
+
:RX errors 0 dropped 0 overruns 0 frame 0<br>
 +
:TX packets 0 bytes 0 (0.0 B)<br>
 +
:TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
 
|}
 
|}
 
6) 然后通过 '''hciconfig''' 命令可以看到 USB 的蓝牙设备<br>
 
6) 然后通过 '''hciconfig''' 命令可以看到 USB 的蓝牙设备<br>
第194行： 第191行：
 
orangepi@orangepi:~$ '''hciconfig'''<br>
 
orangepi@orangepi:~$ '''hciconfig'''<br>
 
hci0: Type: Primary Bus: '''<span style="color:#FF0000">USB</span>'''<br>
 
hci0: Type: Primary Bus: '''<span style="color:#FF0000">USB</span>'''<br>
−
BD Address: 00:13:EF:F4:58:AE ACL MTU: 820:8 SCO MTU: 255:16 DOWN<br>
+
:BD Address: 00:13:EF:F4:58:AE ACL MTU: 820:8 SCO MTU: 255:16 <br>
−
RX bytes:1252 acl:0 sco:0 events:125 errors:0<br>
+
:DOWN<br>
−
TX bytes:23307 acl:0 sco:0 commands:125 errors:0
+
:RX bytes:1252 acl:0 sco:0 events:125 errors:0<br>
 +
:TX bytes:23307 acl:0 sco:0 commands:125 errors:0
 
|}
 
|}
 
7) 在桌面中也可以看到出现了蓝牙图标，此时蓝牙还未打开，所以会显示一个红色的 '''<span style="color:#FF0000">x</span>'''<br><br>
 
7) 在桌面中也可以看到出现了蓝牙图标，此时蓝牙还未打开，所以会显示一个红色的 '''<span style="color:#FF0000">x</span>'''<br><br>

2023年4月24日 (一) 19:05的最新版本

目前测试过的能用的 USB 无线网卡如下所示，其他型号的 USB 无线网卡请自行测试，如果无法使用就需要移植对应的 USB 无线网卡驱动

序号 型号
1 RTL8723BU
支持 2.4G WIFI+BT4.0 		Pi-5-details-pic126.png
2 RTL8811
支持 2.4G +5G WIFI 		Pi-5-details-pic127.png
3 RTL8821CU
支持 2.4G +5G WIFI
支持 BT 4.2 		Pi-5-details-pic128.png

1、RTL8723BU 测试

1) 首先将 RTL8723BU 无线网卡模块插入开发板的 USB 接口中

2) 然后linux 系统会自动加载RTL8723BU 蓝牙和WIFI 相关的内核模块，通过 lsmod 命令可以看到下面内核模块已自动加载

orangepi@orangepi:~$ lsmod

ModuleSize Used by
rfcomm 57344 16
rtl8xxxu 1064960
rtk_btusb 61440 0

3) 通过 dmesg 命令可以看到 RTL8723BU 模块的加载信息

orangepi@orangepi:~$ dmesg

......
[ 83.438901] usb 2-1: new high-speed USB device number 2 using ehci-platform
[ 83.588375] usb 2-1: New USB device found, idVendor=0bda, idProduct=b720,
bcdDevice= 2.00
[ 83.588403] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 83.588422] usb 2-1: Product: 802.11n WLAN Adapter
[ 83.588443] usb 2-1: Manufacturer: Realtek
[ 83.588460] usb 2-1: SerialNumber: 00e04c000001
[ 83.601974] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06
lmp_subver=8723
[ 83.603894] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 83.603920] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[ 83.610108] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[ 83.611274] Bluetooth: hci0: RTL: cfg_sz 68, total sz 22564
[ 83.658494] rtk_btusb: Realtek Bluetooth USB driver ver
3.1.6d45ddf.20220519-142432
[ 83.658651] usbcore: registered new interface driver rtk_btusb
[ 83.667124] usb 2-1: This Realtek USB WiFi dongle (0x0bda:0xb720) is untested!
[ 83.667137] usb 2-1: Please report results to Jes.Sorensen@gmail.com
[ 83.890140] usb 2-1: Vendor: Realtek
[ 83.890153] usb 2-1: Product: 802.11n WLAN Adapter
[ 83.890159] usb 2-1: rtl8723bu_parse_efuse: dumping efuse (0x200 bytes):
......
[ 83.890412] usb 2-1: RTL8723BU rev E (SMIC) 1T1R, TX queues 3, WiFi=1, BT=1,
GPS=0, HI PA=0
[ 83.890417] usb 2-1: RTL8723BU MAC: 00:13:ef:f4:58:ae
[ 83.890421] usb 2-1: rtl8xxxu: Loading firmware rtlwifi/rtl8723bu_nic.bin
[ 83.895289] usb 2-1: Firmware revision 35.0 (signature 0x5301)
[ 84.050893] Bluetooth: hci0: RTL: fw version 0x0e2f9f73
[ 84.266905] Bluetooth: RFCOMM TTY layer initialized
[ 84.266949] Bluetooth: RFCOMM socket layer initialized
[ 84.266999] Bluetooth: RFCOMM ver 1.11
[ 84.884270] usbcore: registered new interface driver rtl8xxxu
[ 84.912046] rtl8xxxu 2-1:1.2 wlx0013eff458ae: renamed from wlan0

4) 然后通过 sudo ifconfig 命令可以看到 RTL8723BU WIFI 的设备节点，WIFI 的连接和测试方法请参看 WIFI 连接测试一节，这里不再赘述

orangepi@orangepi:~$ sudo ifconfig wlx0013eff458ae

wlx0013eff458ae: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

ether 00:13:ef:f4:58:ae txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

5) 然后通过 hciconfig 命令可以看到 USB 的蓝牙设备

orangepi@orangepi:~$ sudo apt update && sudo apt install bluez

orangepi@orangepi:~$ hciconfig
hci0: Type: Primary Bus: USB

BD Address: 00:13:EF:F4:58:AE ACL MTU: 820:8 SCO MTU: 255:16
DOWN
RX bytes:1252 acl:0 sco:0 events:125 errors:0
TX bytes:23307 acl:0 sco:0 commands:125 errors:0

6) 在桌面中也可以看到出现了蓝牙图标，此时蓝牙还未打开，所以会显示一个红色的 x

Pi-5-details2-pic01.png

7) 点击 Turn Bluetooth On 可以打开蓝牙

Pi-5-details2-pic02.png

8) 打开蓝牙后的显示如下所示

Pi-5-details2-pic03.png

9) 蓝牙的测试方法请参看 蓝牙使用方法一节，这里不再赘述

2、RTL8811 测试

1) 首先将 RTL8811 无线网卡模块插入开发板的 USB 接口中

2) 然后 linux 系统会自动加载 RTL8811 WIFI 相关的内核模块，通过 lsmod 命令可以看到下面内核模块已自动加载

orangepi@orangepi:~$ lsmod

ModuleSize Used by
8821cu 1839104 0

3) 通过 dmesg 命令可以看到 RTL8811 模块的加载信息

orangepi@orangepi:~$ dmesg

[ 118.618194] usb 2-1: new high-speed USB device number 2 using ehci-platform
[ 118.767152] usb 2-1: New USB device found, idVendor=0bda, idProduct=c811, bcdDevice= 2.00
[ 118.767181] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 118.767199] usb 2-1: Product: 802.11ac NIC
[ 118.767219] usb 2-1: Manufacturer: Realtek
[ 118.767235] usb 2-1: SerialNumber: 123456
[ 119.500530] usbcore: registered new interface driver rtl8821cu
[ 119.525498] rtl8821cu 2-1:1.0 wlx1cbfced9d260: renamed from wlan0

4) 然后通过 sudo ifconfig 命令可以看到 WIFI 的设备节点，WIFI 的连接和测试方法请参看 WIFI 连接测试一节，这里不再赘述

orangepi@orangepi:~$ sudo ifconfig wlx1cbfced9d260

wlx1cbfced9d260: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

ether 1c:bf:ce:d9:d2:60 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

3、RTL8821CU 测试

1) 首先将 rtl8821cu 无线网卡模块插入开发板的 usb 接口中

2) 然后使用 lsusb 命令就可以看到 rtl8821cu usb wifi 模块的设备信息，请确保 USB模块没有处于 Driver CDROM Mode

orangepi@orangepi:~$ lsusb | grep "Realtek"
Bus 002 Device 003: ID 0bda:c820 Realtek Semiconductor Corp. 802.11ac NIC

orangepi@orangepi:~$ lsusb | grep "Realtek"
Bus 002 Device 002: ID 0bda:1a2b Realtek Semiconductor Corp. RTL8188GU 802.11n WLAN Adapter (Driver CDROM Mode)

如果 lsusb 命令看到的 USB WIFI 模块处于 Driver CDROM Mode，请重新拔插下 USB WIFI 模块。如果还不行，请手动执行下面的命令切换下模式：

orangepi@orangepi:~$ sudo usb_modeswitch -KW -v 0bda -p 1a2b

3) linux 系统会自动加载 rtl8821cu 蓝牙和 wifi 相关的内核模块，通过 lsmod 命令可以看到下面内核模块已自动加载

orangepi@orangepi:~$ lsmod

ModuleSize Used by
8821cu1839104 0
rtk_btusb 61440 0

4) 通过 dmesg 命令可以看到 rtl8821cu 模块的加载信息

orangepi@orangepi:~$ dmesg

......
[ 57.083693] usb 2-1: new high-speed USB device number 2 using ehci-platform
[ 57.231888] usb 2-1: New USB device found, idVendor=0bda, idProduct=1a2b, bcdDevice= 2.00
[ 57.231916] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 57.231937] usb 2-1: Product: DISK
[ 57.242594] usb-storage 2-1:1.0: USB Mass Storage device detected [ 57.245674] scsi host0: usb-storage 2-1:1.0
[ 58.069172] usb 2-1: USB disconnect, device number 2
[ 58.440025] usb 2-1: new high-speed USB device number 3 using ehci-platform
[ 58.587819] usb 2-1: New USB device found, idVendor=0bda, idProduct=c820, bcdDevice= 2.00
[ 58.587827] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 58.587833] usb 2-1: Product: 802.11ac NIC
[ 58.587838] usb 2-1: Manufacturer: Realtek
[ 58.587844] usb 2-1: SerialNumber: 123456
[ 58.610463] rtk_btusb: Realtek Bluetooth USB driver ver 3.1.6d45ddf.20220519-142432
[ 58.610656] usbcore: registered new interface driver rtk_btusb
[ 58.634631] Bluetooth: hci0: RTL: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[ 58.636729] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 58.636740] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_fw.bin
[ 58.664190] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_config.bin
[ 58.664746] Bluetooth: hci0: RTL: cfg_sz 10, total sz 31990
[ 59.122471] Bluetooth: hci0: RTL: fw version 0x829a7644
[ 59.265513] usbcore: registered new interface driver rtl8821cu
[ 59.280119] rtl8821cu 2-1:1.2 wlx90de80521825: renamed from wlan0

5) 然后通过 sudo ifconfig 命令可以看到 rtl8821cu wifi 的设备节点，wifi 的连接和测试方法请参看 WIFI 连接测试一节，这里不再赘述

orangepi@orangepi:~$ sudo ifconfig wlx90de80521825

wlx90de80521825: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

ether 00:13:ef:f4:58:ae txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

6) 然后通过 hciconfig 命令可以看到 USB 的蓝牙设备

orangepi@orangepi:~$ sudo apt-get update && sudo apt-get install -y bluez

orangepi@orangepi:~$ hciconfig
hci0: Type: Primary Bus: USB

BD Address: 00:13:EF:F4:58:AE ACL MTU: 820:8 SCO MTU: 255:16
DOWN
RX bytes:1252 acl:0 sco:0 events:125 errors:0
TX bytes:23307 acl:0 sco:0 commands:125 errors:0

7) 在桌面中也可以看到出现了蓝牙图标，此时蓝牙还未打开，所以会显示一个红色的 x

Pi-5-details2-pic04.png

8) 点击 Turn Bluetooth On 可以打开蓝牙

Pi-5-details2-pic05.png

9) 打开蓝牙后的显示如下所示

Pi-5-details2-pic06.png

蓝牙的测试方法请参看 蓝牙使用方法一节，这里不再赘述

取自“http://www.orangepi.cn/orangepiwiki/index.php?title=USB_无线网卡测试&oldid=1924”