usb2 | USB 2.0 data types - USB | Change Data Capture library

I'm using a small laptop to copy video files on location to multiple memory sticks (~8GB). The copy has to be done without supervision once it's started and has to be fast.

I've identified a serious boundary to the speed, that when making several copies (eg 4 sticks, from 2 cameras, ie 8 transfers * 8Gb ) the multiple Reads use a lot of bandwidth, especially since the cameras are USB2.0 interface (two ports) and have limited capacity.

If I had unix I could use tar -cf - | tee tar -xf /stick1 | tee tar -xf /stick2 etc which means I'd only have to pull 1 copy (2*8Gb) from each camera once, on the USB2.0 interface.

The memory sticks are generally on a hub on the single USB3.0 interface that is driven on different channel so write sufficently fast.

For reasons, I'm stuck using the current Win10 PowerShell.

I'm currently writing the whole command to a string (concatenating the various sources and the various targets) and then using Invoke-Process to execute the copy process while I'm entertaining and buying the rounds in the pub after the shoot. (hence the necessity to be afk).

I can tar cf - | tar xf a single file, but can't seem to get the tee functioning correctly.

Edit: I've just advanced to play with Get-Content -raw | tee \stick1\f1 | tee \stick2\f1 | out-null . Haven't done timings or file verification yet....

Edit2: It seems like the Get-Content -raw works properly, but the functionality of PowerShell pipelines violates two of the fundamental Commandments of programming: A program shall do one thing and do it well, Thou shalt not mess with the data stream. For some unknown reason PowerShell default (and only) pipeline behaviour always modifies the datastream it is supposed to transfer from one stream to the next. Doesn't seem to have a -raw option nor does it seem to have a $session or $global I can set to remedy the mutilation.

How do PowerShell people transfer raw binary from one stream out, into the next process?

I'm trying to port a MySQL query to SQL Server. The query works fine in MySQL, but in SQL Server, it fails with the following error:

An expression of non-boolean type specified in a context where a condition is expected

I suspect it is because SQL Server doesn't like the fact that I use an AND coupled with the IN operator in the left join conditional.

QUERY

PyQT5 QCamera not clicking a photo

I tried refering their official PyQt5 QCamera Documentation but didn't understood much.

1. I have created a Mainwindow with a pushbutton
2. Button on click, executes the clickphoto function
3. clickphoto function runs to capture image only when available cameras list length > 0, else prints Error

Am working on a custom board - has no removable storage (sd) and only one UART. I need to transfer files on the the QSPI storage using barebox bootloader.

I am trying to use DFU to transfer various files to write to QSPI

Device tree has the follow among other things

I just updated Android Studio to its latest version 4.2.1 and the emulator stopped working. Every time I try to launch a new virtual device it crashes and AVD Manager shows me this error:

"The emulator process for AVD Pixel_C_API_30 was killed"

Here is what I have tried so far:

1. Cold boot restart.

2. Deleted and recreated the virtual device inside AVD manager.

3. Removed and re-installed the emulator SDK package (version 30.7.4)

4. Quit and restarted Android Studio as well as the emulator.

5. Created a new virtual device from scratch.

6. Tried several different virtual devices.

All of the above gives me the same exact result: the emulator crashes and AVD manager shows me the error above.

And here is the error I get from MacOS (just the an excerpt of it):

I am trying to add a custom memory-mapped component in intel FPGA based soc system. I have connected the custom component(NVDLA) with light-weight axi bridge (HPS to FPGA bridge). Device Tree File.

I am working on ubuntu 20.04 LTS with 2 computer mice (Microsoft Microsoft® 2.4GHz Transceiver v9.0 Mouse, id=11 and MX Vertical Mouse, id=31) attached to 2 different masters (Virtual core pointer, id=2 and Auxiliary pointer id=27), see xinput:

I have following lines :

Hi I am trying to display webcam stream on windows.

I can use "ffplay" but I want to use "ffmpeg" command.