Sony Dualshock 3 controllers have two motors which can be used to provide
simple force feedback rumble effects. The right motor is can be used to
create
a weak rumble effect but does not allow to set the force. The left motor
is
used to create a strong rumble effect with adjustable intensity.

Hi,
This patch appears to work OK with my DualShock/SixAxis controller (USB
connection), but causes a machine lockup when used with my Intec wired
controller.

The Intec controller works OK up to the point when I start rumble,
sometimes the motor runs some times it doesn't. I am using SDL2's
'testhaptic' application.

Syslog log attached detail controller.

If you have any specific tests to run, please advise,
Simon