Martin Bohun Hormann mbohun

/var/lib/dkms/v4l2loopback/0.12.7/build/make.log

DKMS make.log for v4l2loopback-0.12.7 for kernel 6.1.115-vendor-rk35xx (aarch64)
Mon Feb  9 12:05:20 PM CET 2026
Building v4l2-loopback driver...
make -C /lib/modules/6.1.115-vendor-rk35xx/build M=/var/lib/dkms/v4l2loopback/0.12.7/build modules
make[1]: Entering directory '/usr/src/linux-headers-6.1.115-vendor-rk35xx'
warning: the compiler differs from the one used to build the kernel
  The kernel was built by: aarch64-linux-gnu-gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0

`termux-location`

install

install termux app
install termux-api app
open termux terminal and install:
```
pkg install termux-api
```

run it

big.LITTLE cpu-pinning

ROCKPro64

ROCKpro64 by PINE64
- Rockchip RK3399
big.LITTLE architecture:
- Quad Cortex-A53 0xd03
- Dual Cortex-A72 0xd08

NOTE: "CPU part" identifies the A53 and A72 CPUs respectively.

REFERENCES:

https://geojson.io
TODO

Feature	C++17 (`std`)	Boost `1.88`
Threading	✅ (`std::thread`)	✅ (`boost::thread`)
Mutexes	✅ (`std::mutex`)	✅ (`boost::mutex`)
Futures/Promises	✅ (`std::future`)	✅ (`boost::future`)
Filesystem	✅ (`std::filesystem`)	✅ (`boost::filesystem`)
Time Utilities	✅ (`std::chrono`)	✅ (`boost::chrono`)
UDP Sockets	❌	✅ (`boost::asio`)
TCP Sockets	❌	✅ (`boost::asio`)
HTTP/HTTPS	❌	✅ (`boost::beast`)

mbohun@mamlas:~> Read from remote host 192.168.1.35: Connection timed out
Connection to 192.168.1.35 closed.
client_loop: send disconnect: Broken pipe
[mbohun@mbohunorangepi5pro ~]$ ssh 192.168.1.35
Last login: Thu Mar  6 08:05:01 AEDT 2025 from 192.168.1.20 on ssh

1 device has a firmware upgrade available.
Run `fwupdmgr get-upgrades` for more information.

wikipedia 💩

https://en.wikipedia.org/wiki/Flammulina_velutipes

Kingdom:  Fungi
Division: Basidiomycota
Class:	  Agaricomycetes
Order:	  Agaricales
Family:	  Physalacriaceae

Creating the "main" photo gallery screen

From each gallery (subdir) index.html "main" thumbnail
- encoded at (XPath):
```
/html/head/meta[@property="og:image"]/@content
```
By extracting each gallery thumbnail with xmllint --xpath as shown here:

mbohun@mamlas:~/pCloudDrive/Public Folder/fungi> find . -name "index.html"
    | xargs xmllint --xpath 'string(/html/head/meta[@property="og:image"]/@content)'

AXAGON USB-C_to_eth

[mbohun@danctnix ~]$ sudo dmesg -T
...

[Sat Dec  7 16:19:49 2024] usb 2-1: new SuperSpeed USB device number 8 using xhci-hcd
[Sat Dec  7 16:19:49 2024] usb 2-1: New USB device found, idVendor=0bda, idProduct=8153, bcdDevice=30.00
[Sat Dec  7 16:19:49 2024] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[Sat Dec  7 16:19:49 2024] usb 2-1: Product: USB 10/100/1000 LAN
[Sat Dec 7 16:19:49 2024] usb 2-1: Manufacturer: Realtek

	#include <SDL3/SDL.h>
	#include <SDL3_ttf/SDL_ttf.h>

	int main() {
	SDL_Init(SDL_INIT_VIDEO);
	TTF_Init(); // Initialize the font system

	SDL_Window* window = SDL_CreateWindow("Text Demo", 800, 600, 0);
	SDL_Renderer* renderer = SDL_CreateRenderer(window, NULL);