USBDevice | Highly flexible Composite USB Device Library | Change Data Capture library

I can’t get USB bsdname from macOS Monterey 12 Bate4 of Intel processor: I have use the "IORegistryEntrySearchCFProperty" function to get the bsdName of the io_service_t, It worked fine on macOS Big Sur's M1 and Intel MBP. Also it worked fine on macOS Monterey App M1. But it always returned nil on macOS Monterey Intel MBP. It involves the following code:

This question is not duplicate for Programmatically obtaining the vendor ID, product ID of a USB device on Android platform

Because I am not trying to get the VendorID and ProductID for the attached device, I am trying to get the PID and VID for the Android phone to do something with them, how to get them. Unfortunately the class UsbDevice represents an attached UsbDevice which is not my case.

I tried to connect USB devices in uwp according to the instructions in MSDN, but I couldn't connect to usb devices and always getting null from UsbDevice.FromIdAsync (). I had seen may questions and answers regarding this issue here here

But nothing solved my issue. Any help would be appreciated.

these are the code snippet am trying. the same code snippet is working with .Net standard applications. But not working with UWP.

I have a static library which I do not have the source code, and need its symbols to be called dynamically from the LuaJIT FFI.

As it is static, I can't load it dynamically, so I'm trying to embed it in a shared library and then load the shared library at runtime.

Problem is that exported symbols of the static library are present in the symbols table of the shared lib, but are undefined.

I am building an Android app using Kotlin. What I am trying to do is that I am trying to list down all the devices connected via USB. But the device list is always empty.

First I put in the following declaration in the AndroidManifest.xml file:

I'm trying to gain a deeper understanding of the Android USB APIs. I have played with the USB Host APIs and have successfully connected various devices (USB stick, USB hub with other devices attached) to my Android phone (Phone as host). I discovered the devices, pulled information, explored the interfaces, endpoint information etc.

When I plug my Phone into my PC I assumed the PC would be enumerated as either a Device or an Accessory, but it does not show up as either.

Here is the code I'm using to discover all Devices and Accessories

I am trying to implement some code from this old tutorial from 2015 (which is using a VERY old version of PyVISA, so everything is different now):

I have a class with one method that get data through usb device and add it into ArrayList:

UPDATED CODE

I'm using this code to claim the use of the serial-2-USB device. It shows up and I can query the info about it, ie. "connected to USB2.0-Serial VID: 6790 PID: 29987" (CH34x from Qinheng). To be clear, I use the winUSB driver (downloaded with zadig-2.5.exe, Windows 10) and have uninstalled the original drivers.

I get the received data as dataview but when I do the decode it comes out gibberish. And I see that the array length pretty much corresponds to what I know my ESP8266 is posting over the serial port.

Example of decoded data: �(#���D"D�T�b�!A#7mP�R�N����#�m93aw9 ½�d-K��b��BF+3ѡ��kag1�R�#��#!!r����g�!d��a��谛oa��399�}��1D�#��'99�����9�����'99���'99����@@譛

I get the data as Uint8Arrays but even if I try to make my own parser the same gibberish is the end result. Do I need to care about USB stuff as in start bits, ack bits etc. etc.? All the example code out there just do a text decoder and that's it.

serial.js + index.html