Re: Fwd: issue with Mad Catz joystick ?

Re: Fwd: issue with Mad Catz joystick ?

[Christoph Fritz]

Hi Guillaume

On Tue, 2015-05-05 at 08:09 +0200, Guillaume APOSTOLY wrote:
> I have the first PS3 version of the MadCatz Arcade Stick and I am trying to
> use it on my raspberry pi (with a raspbian distribution).
> The joystick is "detected", it shows up if I do "lsusb" and even if I do a
> "jstest /dev/input/js0" but the display of jstest is like frozen and
> pressing the buttons has no effect.
> Oddly enough, it worked once (not the first time) after a reboot.

Can you make sure this PS3 device is in an overall working condition? If
so, you need to come up with a quirk to make it work for Linux.

> I have tested modification of the voltage of the USB, tried to power it
> with a Y cable in case this was the issue, I have investigated the usb
> layer (the stick being known on the web to use OHCI but I think this is a
> wrong lead).
> Yesterday, I also added a part to xpad.c with the appropriate device ID,
> hoping that it will make it work somehow better, as currently only the xbox
> version is declared, and recompiled the kernel but this changes nothing :

As you noted, your device is for PlayStation 3 -- why do you think the
xbox driver is appropriate? It's not!

have fun
  -- chf

Re: issue with Mad Catz joystick ?

[Guillaume Apostoly]

Hi,
Yes it's on working conditions (and i have two of them), I looked into the xpad driver because 1) it was handling the ps3 pad at the beginning 2) because I found reference to the xbox version of my pad in it, so I stupidly tried just to had the UUID of mine in the code.
The issues I have to investigate further is that I don't understand how the kernel decide which module is loaded for the joypad, if I modprobe other joystick related modules I don't see how to know if module A or B is handling it. 
All I know is jstest "kind of" work with it but does not.
If you could point me to some leads that could be cool, I can give you external root access to it if you want.

Best regards


> Le 8 mai 2015 à 23:39, Christoph Fritz <chf.fritz-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> a écrit :
> 
> Hi Guillaume
> 
>> On Tue, 2015-05-05 at 08:09 +0200, Guillaume APOSTOLY wrote:
>> I have the first PS3 version of the MadCatz Arcade Stick and I am trying to
>> use it on my raspberry pi (with a raspbian distribution).
>> The joystick is "detected", it shows up if I do "lsusb" and even if I do a
>> "jstest /dev/input/js0" but the display of jstest is like frozen and
>> pressing the buttons has no effect.
>> Oddly enough, it worked once (not the first time) after a reboot.
> 
> Can you make sure this PS3 device is in an overall working condition? If
> so, you need to come up with a quirk to make it work for Linux.
> 
>> I have tested modification of the voltage of the USB, tried to power it
>> with a Y cable in case this was the issue, I have investigated the usb
>> layer (the stick being known on the web to use OHCI but I think this is a
>> wrong lead).
>> Yesterday, I also added a part to xpad.c with the appropriate device ID,
>> hoping that it will make it work somehow better, as currently only the xbox
>> version is declared, and recompiled the kernel but this changes nothing :
> 
> As you noted, your device is for PlayStation 3 -- why do you think the
> xbox driver is appropriate? It's not!
> 
> have fun
>  -- chf
> 
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Re: issue with Mad Catz joystick ?

[Christoph Fritz]

On Sat, 2015-05-09 at 10:54 +0200, Guillaume Apostoly wrote:
> The issues I have to investigate further is that I don't understand
> how the kernel decide which module is loaded for the joypad, if I
> modprobe other joystick related modules I don't see how to know if
> module A or B is handling it.

Depends on USB VID/PID or USB Descriptor. If you want to read more about
USB, e.g. look at: www.usb.org
As far as I know, PS3 controllers come with a HID descriptor, so the
generic hid driver binds this. It's quirks get organized by
drivers/hid/usbhid/hid-quirks.c

> All I know is jstest "kind of" work with it but does not.
> If you could point me to some leads that could be cool, I can give you
> external root access to it if you want.

No, I don't want that! :)

bye
 -- chf