目录
- 1.关于 EDIMAX EW-7822UAC
- 2.驱动安装
- 3.查看无线网卡信息
- 3.通过create_ap配置5G自发AP
1.关于 EDIMAX EW-7822UAC
官网介绍
https://www.edimax.com/edimax/merchandise/merchandise_detail/data/edimax/global/wireless_adapters_ac1200_dual-band/ew-7822uac/
详细参数：https://www.amazon.cn/dp/B00F97PU18
- 品牌：EDiMAX
- 制造商：Edimax
- 型号 FBA_EW-7822UAC
- 芯片：Realtek RTL8812AU
- 商品尺寸 20.29 x 13.49 x 3.81 cm
- 制造商是否已停产 不是
- 颜色 黑色//白色
- 计算机无线类型：802.11bgn
- 操作系统：Windows 8; Mac OS X (10.8.4 or above supports USB 3.0)
- 是否包含电池：不是
- 商品重量：118 g
2.驱动安装
这里以 Xubuntu16.04系统（内核：4.14）为例
- 下载地址：https://download.csdn.net/download/qq_45445740/88614252
- 下载后拷贝到目标设备上进行解压，运行
install-driver.sh脚本
sudo ./install-driver.sh
- 待
install-driver.sh安装完后可选择N，修改如下文件，将/etc/modprobe.d/8812au.conf前面的 #号 去掉，保存。
- 重启设备
3.查看无线网卡信息
- 此时可查看到插入的无线网卡信息
ifconfig
- 这里以
wlx08beac134a56为例，查看可选择的信道
iwlist wlx08beac134a56 channel
- 查看无线网卡的详细信息
iw list
root@aubo-1712986093:~# iw list
Wiphy phy1
max # scan SSIDs: 9
max scan IEs length: 2304 bytes
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP (00-0f-ac:4)
* CMAC (00-0f-ac:6)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* monitor
* P2P-client
* P2P-GO
Band 1:
Capabilities: 0x1962
HT20/HT40
Static SM Power Save
RX HT20 SGI
RX HT40 SGI
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT TX/RX MCS rate indexes supported: 0-15
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps
* 5.5 Mbps
* 11.0 Mbps
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (17.0 dBm)
* 2417 MHz [2] (17.0 dBm)
* 2422 MHz [3] (17.0 dBm)
* 2427 MHz [4] (17.0 dBm)
* 2432 MHz [5] (17.0 dBm)
* 2437 MHz [6] (17.0 dBm)
* 2442 MHz [7] (17.0 dBm)
* 2447 MHz [8] (17.0 dBm)
* 2452 MHz [9] (17.0 dBm)
* 2457 MHz [10] (17.0 dBm)
* 2462 MHz [11] (17.0 dBm)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)
Band 2:
Capabilities: 0x862
HT20/HT40
Static SM Power Save
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT TX/RX MCS rate indexes supported: 0-15
VHT Capabilities (0x03c031a2):
Max MPDU length: 11454
Supported Channel Width: neither 160 nor 80+80
short GI (80 MHz)
TX STBC
SU Beamformee
+HTC-VHT
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 867 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 867 Mbps
Bitrates (non-HT):
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 5180 MHz [36] (16.0 dBm)
* 5200 MHz [40] (16.0 dBm)
* 5220 MHz [44] (16.0 dBm)
* 5240 MHz [48] (16.0 dBm)
* 5260 MHz [52] (disabled)
* 5280 MHz [56] (disabled)
* 5300 MHz [60] (disabled)
* 5320 MHz [64] (disabled)
* 5500 MHz [100] (disabled)
* 5520 MHz [104] (disabled)
* 5540 MHz [108] (disabled)
* 5560 MHz [112] (disabled)
* 5580 MHz [116] (disabled)
* 5600 MHz [120] (disabled)
* 5620 MHz [124] (disabled)
* 5640 MHz [128] (disabled)
* 5660 MHz [132] (disabled)
* 5680 MHz [136] (disabled)
* 5700 MHz [140] (disabled)
* 5720 MHz [144] (disabled)
* 5745 MHz [149] (16.0 dBm)
* 5765 MHz [153] (16.0 dBm)
* 5785 MHz [157] (16.0 dBm)
* 5805 MHz [161] (16.0 dBm)
* 5825 MHz [165] (16.0 dBm)
* 5845 MHz [169] (disabled)
* 5865 MHz [173] (disabled)
* 5885 MHz [177] (disabled)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* set_bss
* join_ibss
* set_pmksa
* del_pmksa
* flush_pmksa
* remain_on_channel
* frame
* set_channel
* connect
* disconnect
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0xd0
* managed: 0x40 0xb0 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
WoWLAN support:
* wake up on anything (device continues operating normally)
software interface modes (can always be added):
* monitor
interface combinations are not supported
Device supports SAE with AUTHENTICATE command
Device supports scan flush.
3.通过create_ap配置5G自发AP
下载配置create_ap
- 这里以165信道为例
CHANNEL=165
GATEWAY=10.0.0.1
WPA_VERSION=2
ETC_HOSTS=0
DHCP_DNS=gateway
NO_DNS=0
NO_DNSMASQ=0
HIDDEN=0
MAC_FILTER=0
MAC_FILTER_ACCEPT=/etc/hostapd/hostapd.accept
ISOLATE_CLIENTS=0
SHARE_METHOD=nat
IEEE80211N=0
IEEE80211AC=0
HT_CAPAB=[HT40+]
VHT_CAPAB=
DRIVER=nl80211
NO_VIRT=0
COUNTRY=CN
FREQ_BAND=2.4
NEW_MACADDR=
DAEMONIZE=0
NO_HAVEGED=0
WIFI_IFACE=wlx08beac134a56
INTERNET_IFACE=enp1s0
SSID=USB-IS-Test
PASSPHRASE=12345678
USE_PSK=0
- Q：开启5G信道后，换到了别的信道，此时再切换回原来的信道，发现是
- 5745 MHz [149] (20.0 dBm) (no IR)
- 5765 MHz [153] (20.0 dBm) (no IR)
- 5785 MHz [157] (20.0 dBm) (no IR)
- 5805 MHz [161] (20.0 dBm) (no IR)
- 5825 MHz [165] (20.0 dBm) (no IR)
- 此时会发现无法开启5G的信道
- A：需要先查看当前国家代码：
iw reg get
设置为中国：iw reg set CN
此时iw list查看可以看到
- 5745 MHz [149] (30.0 dBm)
- 5765 MHz [153] (30.0 dBm)
- 5785 MHz [157] (30.0 dBm)
- 5805 MHz [161] (30.0 dBm)
- 5825 MHz [165] (30.0 dBm)
或者直接将 create_ap.conf 中的配置项改为 COUNTRY=CN
- 开启后可通过
Cellular-Z软件查看是否真正开启了5G信道
