Caleb Connolly calebccff

hwmodules.sh

This script uses the devicetree compatible properties in the modalias info and compares them to all the compatible properties used on the running device. Essentially, it filters lsmod to only show modules which are directly used for hardware functionality on your device. This is NOT an exhaustive list of modules, but should be added to your distros existing list. It doesn't cover basic things like nvme, etc.

Example output

On the Lenovo Yoga Slim 7x laptop, the following is printed:

regbits

Small utility for pretty-printing numbers in binary, useful to manually decoding register without counting digits by hand.

Demo

; regbits 768

USB hub that can do power control on one port (via pico), one USB-A female port for going to the phone
second USB goes to pico
12v in via a barrel jack which powers an LDO with ~3.8-9v 4A output
output adjustable via software or just a pot
output voltage/current measured by MCU
Pico attached to board
pico GPIO pins exposed via some header for phone UART and button control
Should have a jumper to adjust between 1.8/3.3v UART
(just 1.8/3.3v is fine and i know from experience that a single voltage divider on the TX is enough for this)
Spare i2c and a few extra GPIOs for future expansion

Register Bits

Dump in a register value and get a binary representation that makes decoding registers just that bit easier.

Demo

kgdb notes

Kernel config

CONFIG_KGDB=y
CONFIG_KGDB_KDB=y
CONFIG_PANIC_TIMEOUT=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_RANDOMIZE_BASE=n # Disable KASLR

	#!/bin/busybox sh

	# parse-pkg.sh: APKBUILD -> JSON parser
	# This parses APKBUILD files to determine info
	# ahead of time about the package that WOULD be
	# built if abuild were invoked.
	#
	# Since APKBUILD files are literally shell scripts
	# they can be fully dynamic, producing different
	# output depending on the input.

	#!/bin/bash

	start="$1"
	url="$2"
	end="$3"
	shift 3

	pull=$(mktemp /tmp/git-pull-XXXXXXX.pull)

	echo "From: $(git config user.name) <$(git config user.email)>" >> $pull

	#!/bin/sh
	# A crapp tool to push and open a gitlab MR
	# with just one command!

	# --force-with-lease ensures that we don't override any commits which only exist
	# on the remote. But it will let you overwrite commits you've ammended.
	cmd="git push --force-with-lease -o merge_request.create -o merge_request.description="

	case $# in
	1)

	#!/bin/sh

	PROC="gnome-shell"
	CLAMP=900

	PID=$(pidof "$PROC")

	function enable() {
	echo "Setting uclamp min to 800 (max: 1024)"
	uclampset --pid "$PID" -m "$CLAMP"

	#!/usr/bin/env python3
	# SPDX-License-Identifier: GPL-2.0
	# Copyright 2023 Linaro Ltd.
	# Author: Caleb Connolly <[email protected]>
	#
	# Listens to a serial port and automatically detects and decodes
	# Synchronous aborts. DO NOT run your serial monitor at the same
	# time as this tool! It will configure a PTY and symlink it to
	# /tmp/abortwatch.pty, you should point your serial monitor there
	# instead!