8821au-20210708 | Linux Driver for USB WiFi Adapters | Wifi library

by morrownr C Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | 8821au-20210708 Summary

8821au-20210708 is a C library typically used in Networking, Wifi applications. 8821au-20210708 has no bugs, it has no vulnerabilities and it has low support. However 8821au-20210708 has a Non-SPDX License. You can download it from GitHub.

Linux Driver for USB WiFi Adapters that are based on the RTL8811AU and RTL8821AU Chipsets - v5.12.5.2

Support

Quality

Security

License

Reuse

Support

8821au-20210708 has a low active ecosystem.

It has 249 star(s) with 45 fork(s). There are 14 watchers for this library.

It had no major release in the last 6 months.

There are 23 open issues and 43 have been closed. On average issues are closed in 36 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of 8821au-20210708 is current.

Quality

8821au-20210708 has no bugs reported.

Security

8821au-20210708 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

8821au-20210708 has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

8821au-20210708 releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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8821au-20210708 Key Features

No Key Features are available at this moment for 8821au-20210708.

8821au-20210708 Examples and Code Snippets

No Code Snippets are available at this moment for 8821au-20210708.

Community Discussions

Trending Discussions on Wifi

Is it possible to make WIFI scanner on android with API level 29+?

How to check Wi-Fi switch state 'ON' or 'OFF' even if not connected to a WiFi network on Android

Low signal strength in 5Ghz wifi

Is the Android Wifi-API really so broken on Android 10+?

Is it possible to get mac addresses when scanning networks? ESP32

Is there a way to generate a wifi qr code with pillow and qrcode library in python?

Why is 802.11 to 802.3 conversion impossible in monitoring mode?

B.A.T.M.A.N ad-hoc WiFi nodes cannot ping each other

Multipeer Connectivity - Get file transfer(Internet) speed and File Size in Swift 5

Is there an method to convert wifi frame to ethernet frame?

QUESTION

Is it possible to make WIFI scanner on android with API level 29+?

Asked 2022-Apr-05 at 08:31

Even with all the permissions granted the startScan() function still returns false. So my question is: is there a way to scan access points on android 29 or higher?

...

ANSWER

Answered 2022-Apr-05 at 08:31

The problem was in asking the user for permission. My working code

-Manifest:

-And for asking user for permissions I used EasyPermissions:

Source https://stackoverflow.com/questions/71591990

QUESTION

How to check Wi-Fi switch state 'ON' or 'OFF' even if not connected to a WiFi network on Android

Asked 2022-Apr-04 at 20:41

I need to develop a feature that is required checking Wi-Fi settings state 'ON' or 'OFF' even if not connected to a WiFi network on Android! I need to display a pop up!

...

ANSWER

Answered 2022-Apr-01 at 19:12

I think you should to use ConnectivityManager.

Source https://stackoverflow.com/questions/71709442

QUESTION

Low signal strength in 5Ghz wifi

Asked 2022-Mar-24 at 12:30

I've got a router Mikrotik hAP AC2. Recently I've updated RouterOS to version 7.1.3 and have found that 5GHz access point has issues.

My notebook sometimes disconnects from 5GHz wlan, and one of smartphones in my family doesn't connect to 5GHz at all.

Here is the plot of wifi signal strength, that I've collected using my notebook located in direct visibility of the router at the distance of about 5-6m.

Cyan line shows 2.4GHz signal and red line shows 5GHz signal. Numbers are -42dbm for 2.4GHz and -68dbm for 5GHz.

My impression is that generally this is not normal. I repeat, there were no obstacles between the notebook and the router, only thin air.

I've tried to reset configuration for 5GHz wlan, change its region, but without success.

How can I fix this?

Here are current settings:

...

ANSWER

Answered 2022-Mar-24 at 12:30

5GHz Wifi is always lower strength than 2.4GHz, it's physics. 5GHz originally improved performance due to moving away from the then congested 2.4GHz band, however, now 5GHz is just as common so despite having a wider range of frequencies it still ends up congested.

5GHz allows for higher throughput while having the disadvantage of being attenuated quicker due to the higher frequency

2.4GHz has a lower data throughput but isn't attenuated as easily.

Source https://stackoverflow.com/questions/71457688

QUESTION

Is the Android Wifi-API really so broken on Android 10+?

Asked 2022-Mar-22 at 11:19

I'm working on a Wifi auto connect feature and I am shocked how broken that API is.

I'm using now 5 different APIs and I still don't get it in a way the user would expect it.

I have a setting to enable wifi auto connection on Android 10+ I'll try this:

Check if I hold the ACCESS_WIFI_STATE permission with: ...

ANSWER

Answered 2022-Mar-22 at 11:19

Well just a half answer, but it might help anyway. Here is how I get the current SSID of the user (you need to hold the location permission):

Source https://stackoverflow.com/questions/71549864

QUESTION

Is it possible to get mac addresses when scanning networks? ESP32

Asked 2022-Mar-14 at 10:38

I need to get the RSSI of the networks and they MAC addresss to a IPS (indoor position system) program. I was able to get ssid, signal strength and security using the sample code, but not mac addresses. I tryed to use this, but itsn't working:

...

ANSWER

Answered 2021-Oct-06 at 12:02

Maybe the Arduino framework doesn't give this information up easily, but the underlying ESP IDF framework certainly does. The AP-s MAC is called BSSID. Adapting this example scan.c:

Source https://stackoverflow.com/questions/69464843

QUESTION

Is there a way to generate a wifi qr code with pillow and qrcode library in python?

Asked 2022-Feb-18 at 02:16

I think there's a way to generate a wifi qr with pillow and qrcode library in python. I had searched in the internet and there's no information.

I will apreciate your help. Thank's

-Zateward

...

ANSWER

Answered 2022-Feb-18 at 02:16

Yes there is. QR codes are just images that are easy for a computer to decode via taking a picture into something useful.

QR codes are just text/strings encoded into an image.

Python has a library called qrcode.

Mobile phone support a specific format of text that tells it to try and connect to a wifi network. This wiki shows an example of what that connection string would look like.

So here is the steps.

Create a wifi connection string that mobile phones support.
Pass that string into qrcode to generate a PIL image.
Do what you want with that PIL image.

Source https://stackoverflow.com/questions/71167553

QUESTION

Why is 802.11 to 802.3 conversion impossible in monitoring mode?

Asked 2022-Jan-31 at 00:39

When I use Wireshark to capture traffics with my wlan card with monitor mode already set, it only displays 802.11 frames. However, if I use Wireshark with managed mode wlan(promiscuous mode), it certainly displays 802.3 frames.

I searched for some related information and found out that 'network bridging' allows devices to convert 802.11 wireless packets to 802.3 packets. In case of packet capturing, pcap allows conversion.
(link: How to real time convert wireless packet(802.11) to Ethernet packet(802.3) in windows?)

So, Why is 802.11 to 802.3 frame conversion impossible when using monitor mode(not associated to the wireless network)?

Below are pictures of the situation. Thank you in advance.

Promiscuous mode packet capture
Monitor mode packet capture

...

ANSWER

Answered 2022-Jan-31 at 00:39

For one thing, not all 802.11 packets have Ethernet equivalents; only data packets do. In monitor mode, in addition to data packets, control and management packets can be captured - you're seeing those types of packets in your monitor-mode capture.

For another thing, when capturing in monitor mode on a "protected" network (WEP, WPA), data packets are encrypted (to protect them from being sniffed), and can't be converted to Ethernet packets until they're decrypted. Under some circumstances, Wireshark can decrypt them, but Wireshark doesn't do any conversion from 802.11 to 802.3 in any circumstances - when not capturing in monitor mode, the 802.11 adapter converts data packets to 802.3 packets after decrypting them, and doesn't show non-data packets to the host.

Source https://stackoverflow.com/questions/70916098

QUESTION

B.A.T.M.A.N ad-hoc WiFi nodes cannot ping each other

Asked 2022-Jan-24 at 00:31

I am working to connect 2 linux machines, each with this USB Dongle: https://www.tp-link.com/us/home-networking/usb-adapter/archer-t2u-nano/, to an ad-hoc WiFi network managed by B.A.T.M.A.N ( batman-adv ).

When run, this scripts show that both devices are joined to the same ad-hoc/IBSS network.

I statically assigned ip addresses and routes to both 'bat0' devices. However, I cannot ping or otherwise use the connection between the two devices.

What am I doing wrong and how can I use the mesh network in Linux between the connected client and server? Thanks.

My 'server' node is configured with this script:

...

ANSWER

Answered 2022-Jan-24 at 00:31

The answer really is that you need a WiFi radio that actually correclty implements Ad-Hoc/IBSS networking in the driver stack.

Source https://stackoverflow.com/questions/70311287

QUESTION

Multipeer Connectivity - Get file transfer(Internet) speed and File Size in Swift 5

Asked 2022-Jan-13 at 13:19

I am transferring photo peer to peer. All things works fine but I am not able to get the photo(file) transfer speed i.g internet speed. Like MB the file is transferred. Second I want to fetch the size of that file.

We are passing photo in data format using MCSession

Due to privacy I cannot add the project code here but I will share the refrence github project that I followed. In project I am passing string and In my case its Photo. All things are same.

I checked in Stackoverflow but not found any accurate answer!

Reference Project Link: https://github.com/YogeshPateliOS/MultipeerConnectivity-.git

Thank You!

...

ANSWER

Answered 2022-Jan-13 at 13:19

TLDR: If you do not want to read the long explanation and get straight to the code, all the ideas below are brought together and can be tested by downloading my public repository which has comments to explain all of this.

So here are my suggestions on how you can achieve this

After reviewing your code, I see that you are using the following function to send data

Source https://stackoverflow.com/questions/70643079

QUESTION

Is there an method to convert wifi frame to ethernet frame?

Asked 2022-Jan-01 at 13:40

I've searched for some information about frame structure in wifi and ethernet in the Data Link layer and found out that the two frames look quite different. I am wondering if there is some method in the router that converts wifi frame to ethernet frame in a such network where wireless network is connected to wired network, like WLAN. Since I'm really new to this field, I may have some misunderstanding issues. Thank you.

...

ANSWER

Answered 2022-Jan-01 at 13:40

Connecting different or similar networks on the data link layer (L2) is done by a network bridge - you extract relevant data from an ingress frame (esp. source and destination MAC addresses), create a new frame for egress and copy the relevant data into it.

A bridge also examines each frame's source MAC address to learn where each node is located, so it only copies a frame to the other side when its destination is located there.

However, a router works on the network layer (L3): it forwards by IP destination address between IP networks/subnets. It uses data link layer (L2) encapsulation for reaching the next hop but doesn't convert anything. (It removes the encapsulating frame from a received packet, decides where to forward the packet, and then creates a new frame for that packet.)

You might be referring to a consumer-grade Wi-Fi router which effectively contains a NAT router, an Ethernet switch, a wireless access point (mostly bridged), DHCP and DNS servers, etc, blurring the distinction between all those functions.

Source https://stackoverflow.com/questions/70501968

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install 8821au-20210708

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Warning: Installing multiple drivers for the same hardware usually does not end well. If a previous attempt to install this driver failed or if you have previously installed another driver for chipsets supported by this driver, you MUST remove anything that the previous attempt installed BEFORE attempting to install this driver. This driver can be removed with the script called ./remove-driver.sh. Information is available in the section called Removal of the Driver. You can get a good idea as to whether you need to remove a previously installed driver by running the following command:. The installation instructions are for the novice user. Experienced users are welcome to alter the installation to meet their needs. Temporary internet access is required for installation. There are numerous ways to enable temporary internet access depending on your hardware and situation. One method is to use tethering from a phone. Another method is to keep a WiFi adapter that uses an in-kernel driver in your toolkit. You will need to use the terminal interface. The quick way to open a terminal: Ctrl+Alt+T (hold down on the Ctrl and Alt keys then press the T key). An alternative terminal is to use SSH (Secure Shell) from the same or from another computer, in which case you will be in a suitable terminal after logging in, but this step requires that an SSH daemon/server has already been configured. (There are lots of SSH guides available, e.g., for the Raspberry Pi and for Ubuntu. Do not forget to secure the SSH server.). You will need to have sufficient access rights to use sudo so that commands can be executed as the root user. (If the command sudo echo Yes returns "Yes", with or without having to enter your password, you do have sufficient access rights.). DKMS is used for the installation. DKMS is a system utility which will automatically recompile and reinstall this driver when a new kernel is installed. DKMS is provided by and maintained by Dell. It is recommended that you do not delete the driver directory after installation as the directory contains information and scripts that you may need in the future. There is no need to disable Secure Mode to install this driver. If Secure Mode is properly setup on your system, this installation will support it.
Note: If your Linux distro does not fall into one of options listed below, you will need to research how to update your system package information. Note: If you do not regularly maintain your system by installing updated packages, please do so now and then reboot. The rest of the installation will appreciate having a fully up to date system to work with. The installation can then be continued with Step 3. Note: If you are asked to choose a provider, make sure to choose the one that corresponds to your version of the linux kernel (for example, "linux510-headers" for Linux kernel version 5.10). If you install the incorrect version, you'll have to uninstall it and install the correct version. If using other methods, please follow the instructions provided by those methods. Note: see Concurrent_Mode.md in the docs folder to help determine whether you want to enable Concurrent Mode. Warning: This step only applies if you are installing to Raspberry Pi hardware. Warning: You should skip this step if installing to x86 or amd64 based systems. Note: The best option for other 64 bit operating systems to be installed to Raspberry Pi hardware is to use the 64 bit option. An example is Ubuntu for Raspberry Pi.
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For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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