Earlier versions of the module could be rmmod'ed while the X52 joystick
was still plugged in and running. Unplugging the joystick after the
module was removed resulted in a kernel crash.
With this change, the X52 USB control API is moved to it's own
file in order to better separate the code and make it cleaner.
This change also renames the kernel module to saitek_x52.
This commit adds sysfs files to enable or disable the LEDs on the
X52 Pro joystick. This also fixes a minor bug with the brightness
API which was always complaining not-supported.
This still has a bug in that the text is not written correctly. It
shows up as garbage. For now, I'm committing it so that I can work
on it later after the brightness configuration is set up.
Also add the commands header file.
This is pretty much bare bones code to get a basic sysfs filesystem
in place. It has only code to create sysfs files for the 3 MFD lines.
Right now, this needs to be enabled by unplugging the joystick,
insmod'ing the x52joy.ko module, rmmod'ing the usbhid module and
replugging the joystick. We don't yet have a /dev/input/ interface
and there's no interrupt message handling yet.
Nirenjan Krishnan