Henrique Gouveia hngouveia01

hngouveia01 / qmysql.txt

Created May 3, 2019 23:10

QT 5.12 QMYSQL not found macos

	maybe your qt creator could not find QMYSQL

	QSqlDatabase: QMYSQL driver not loaded
	QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7

	use this command to update the path
	install_name_tool -change /usr/local/mysql/lib/libmysqlclient.20.dylib /usr/local/mysql/lib/libmysqlclient.21.dylib ~/Qt/5.12.3/clang_64/plugins/sqldrivers/libqsqlmysql.dylib

hngouveia01 / gist:fa8c8d6be35eb0c67a3b1c35ebb5946c

Last active June 29, 2018 14:14

Installing macos keyboard as in macos for PT-BR etc

	https://github.com/adunning/Mac-Keyboard-Layouts-for-Windows
	http://andrewdunning.ca/Mac-Keyboard-Layouts-for-Windows/

hngouveia01 / debugging_kernel.txt

Last active August 21, 2024 08:14

Debugging kernel code line by line with Qemu and GDB

	We are going to use buildroot to download, configure and compile the kernel.

	First, download and uncompress buildroot: https://buildroot.org/download.html

	Go to the directory and:

	make qemu_x86_defconfig

	make menuconfig

hngouveia01 / C_Language.txt

Created October 13, 2016 21:31

	A C program consists of functions and variables. A function contains statements that specify the computing operations to be done,
	and variables store values used during the computation.

hngouveia01 / systemctl_serial-getty.txt

Last active October 4, 2016 17:28

SOLUTION - systemctl hangs and gives "Connection timed out" in every call when using [email protected]

	I've stumbled upon this problem after migrating from sysvinit to systemd.

	To get the serial console working on systemd I had to set up a service called [email protected]. It uses
	agetty as a way to open ports, ask for login name and password.

	The problem started after I noticed that my custom program, called with /sbin/agetty -i -n -l <program>, would not recognize the
	Enter inserted as a End Of Line (EOL) special char. Then, I had to change from agetty to /bin/busybox getty to get the key recognized.

	latter I learned that this problem could be resolved using the command 'stty cooked'

hngouveia01 / Yocto Linux Kernel Parameters

Created October 3, 2016 17:14

Add kernel parameters to your image

	How do I change the Linux kernel command line?
	The linux kernel command line is typically specified in the machine config using the APPEND variable. For example, you can add some
	helpful debug information doing the following:
	APPEND += "printk.time=y initcall_debug debug"

	examples:
	panic=N (if kernel panic happen, reboot after N seconds.)

hngouveia01 / Macbook Pro Fedora

Last active October 20, 2016 15:10

Get your wifi working with your Fedora 24

	Every time you update your Fedora or in a plain new installation, run these commands to get your wifi working.

	Install

	1- install the kernel-devel packages:
	sudo dnf install akmods "kernel-devel-uname-r == $(uname -r)"

	2- install broadcom-wl:
	sudo dnf install broadcom-wl