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RISC-V when?

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RISC-V when?
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0xDE57 / linux_tpm.md
Last active August 24, 2025 09:04
linux read tpm values quick reference

Check for TPM presence on Linux

Check /dev/

ls /dev/tpm*

If a TPM is present, you may see:

@0xDE57
0xDE57 / serial_rx.py
Created July 26, 2025 07:41
function to open serial port and listen to messages. be sure to set correct port and baud rate.
import serial
def listen_serial(port, baud_rate):
try:
ser = serial.Serial(port, baud_rate)
print(f"Opened {port} with baud rate {baud_rate}")
while True:
# Read data from the serial port
if ser.in_waiting > 0:
@0xDE57
0xDE57 / list_serial.py
Last active August 17, 2025 10:22
simple script to list all serial ports. if port is populated, device info is printed
import os
import serial.tools.list_ports as list_ports
import stat
from pwd import getpwuid
def list_all_ports():
ports = list_ports.comports()
for port in ports:
print(f"Device: {port.device:<15} Path: {port.device_path}")
if (
@0xDE57
0xDE57 / convertImage.desktop
Last active March 12, 2025 11:23
Add right-click context menu / service menu options to KDE Dolphin to convert images using imagemagick. place in: /usr/share/kio/servicemenus https://develop.kde.org/docs/apps/dolphin/service-menus/
[Desktop Entry]
Type=Service
MimeType=image/*;
Actions=convertToPNG;convertToJPG
X-KDE-Submenu=Convert Image
[Desktop Action convertToPNG]
Name=Convert -> PNG
Icon=background
Exec=magick %u %u.png
@0xDE57
0xDE57 / AreYouForCereal.html
Created March 12, 2025 08:19
Test if browser supports Web Serial API: https://developer.mozilla.org/en-US/docs/Web/API/Web_Serial_API
<!DOCTYPE html>
<html>
<body>
<h1 id="cereal">R U 4 Cereal?</h1>
</body>
<script>
var header = document.querySelector("#cereal")
if (navigator.serial) {
@0xDE57
0xDE57 / OpenSimplex2S.java
Created October 10, 2024 09:04 — forked from KdotJPG/OpenSimplex2S.java
Visually isotropic coherent noise algorithm based on alternate constructions of the A* lattice.
/**
* K.jpg's OpenSimplex 2, smooth variant ("SuperSimplex")
*
* More language ports, as well as legacy 2014 OpenSimplex, can be found here:
* https://github.com/KdotJPG/OpenSimplex2
*/
public class OpenSimplex2S {
private static final long PRIME_X = 0x5205402B9270C86FL;
@0xDE57
0xDE57 / gist:5d6c6f9db3e927f2fd4d52d5ba464a02
Created February 8, 2024 05:45
return to old shell UI the shows everything properly. i dont like the stupid new rounded corner right-click context menu UI with icons for cut n paste instead of text.
reg.exe add "HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32" /f /ve
@0xDE57
0xDE57 / fix.txt
Created November 14, 2023 01:53
fix multimonitor on plasma kde wayland sddm manjaro
These files are backups that go in ~/.config/
eg: /home/username/.config/
Fix or replace the files. Then log out session and log back in.
In plasmashell.rc: There should never be more than monitors than are physically connected in [ScreenConnectoers]
You can simply delete all entries and log out and log back in and plasmashell should remake the entries for you.
eg: I have 3 monitors:
[ScreenConnectors]
0=HDMI-A-1
@0xDE57
0xDE57 / gist:1f6945affdf9c14ecf93d2a48663e967
Created January 6, 2022 16:57
android adb
list applications:
adb shell 'pm list packages -f' | sed -e 's/.*=//' | sort
get path for app:
adb shell pm path com.app.name
extract app:
adb pull /path/to/app.apk
@0xDE57
0xDE57 / backup.bat
Created January 29, 2021 00:18
backup script (double check paths before running)
::robocopy C:\source M:\destination /MIR /FFT /R:3 /W:10
::/MIR option (equivalent to /E /PURGE) stands for "mirror" and is the most important option.
::It regards your source folder as the "master", causing it to overwrite any changes on the target side, which is a useful setting for a backup.
::/FFT is a very important option, as it allows a 2-second difference when comparing timestamps of files, such that minor clock differences between your computer and your backup device don't matter. This will ensure that only modified files are copied over, even if file modification times are not exactly synchronized.
::/R:3 specifies the number of retries, if the connection should fail, and /W:10 specifies a wait time of 10 seconds between retries. These are useful options when doing the backup over a network.
::/Z copies files in "restart mode", so partially copied files can be continued after an interruption.
::credit: superuser.com/a/831868
robocopy D:\ G:\ /MIR /FFT /R:3 /W:10 /Z /XJD