Fix RPCS3 controller failed to be reconsided:
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This happens with RPCS3 (The PS3 eulator) on LInux with a new install where it will fail to reconise any DualShock 3 or 4, even though my linux host can see it.
This will apply patches with txt files to help solve this problem.

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DualShock 3:
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create the needed file:
sudo nano /etc/udev/rules.d/99-ds3-controllers.rules
and add this code to that file:

# DualShock 3 over USB
KERNEL=="hidraw", ATTRS{idVendor}=="054c", ATTRS{idProduct}=="0268", MODE="0666"

# DualShock 3 over Bluetooth
KERNEL=="hidraw*", KERNELS=="*054C:0268*", MODE="0666"

Then save it,
then to actavate the changes:
1. restart your computer for these settings to apply or
2. run "sudo udevadm control --reload-rules" and replug in your controller

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DualShock 4:
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create the needed file:
sudo nano /etc/udev/rules.d/99-ds4-controllers.rules
and add this code to that file:
# DualShock 4 over USB
KERNEL=="hidraw*", ATTRS{idVendor}=="054c", ATTRS{idProduct}=="05c4", MODE="0666"

# DualShock 4 Wireless Adapter over USB
KERNEL=="hidraw*", ATTRS{idVendor}=="054c", ATTRS{idProduct}=="0ba0", MODE="0666"

# DualShock 4 Slim over USB
KERNEL=="hidraw*", ATTRS{idVendor}=="054c", ATTRS{idProduct}=="09cc", MODE="0666"

# DualShock 4 over Bluetooth
KERNEL=="hidraw*", KERNELS=="*054C:05C4*", MODE="0666"

# DualShock 4 Slim over Bluetooth
KERNEL=="hidraw*", KERNELS=="*054C:09CC*", MODE="0666"

Then save it,
then to actavate the changes:
1. restart your computer for these settings to apply or
2. run "sudo udevadm control --reload-rules" and replug in your controller

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Source: https://wiki.rpcs3.net/index.php?title=Help:Controller_Configuration#On_Linux
Date: June 25th 2021