JoySens is a custom firmware plugin for Sony PSP that allows you to control the sensitivity of the analog stick in a very efficient way as well as “repair” faulty analog sticks. In very bad cases where the analog stick is not repairable, you can also just disable it so it doesn’t interfere with your games anymore. Apart from that it includes functionality to swap and remap DPad input to analog stick and vice versa, hence allows you to control the XMB with the analog stick for example.

Changes:

1.42 has been replaced with 1.42b fixing a bug that messed up the settings file after saving settings from in game or vsh.

http://forums.qj.net/showthread.php?t=143050