Joypad problem, 'input.0.btn-trigger' does not exi

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02 Apr 2011 10:56 #8391 by austin.mn
while testing I had a wired logitech gamepad hooked up and working, but I am using it on a large plasma table, so it wasn't practical. I bought a logitech wireless controller but I can't seem to get it working. All I get is:
postgui.hal:34: Pin 'input.0.btn-trigger' does not exist

Is there something simple that I am just not doing?

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02 Apr 2011 11:58 #8394 by BigJohnT
The might have different names on the wireless controller.

What model are you using? That would be nice to have on my plasma table as well.

John

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02 Apr 2011 18:24 #8395 by austin.mn
The name of the controllers when I go to terminal and type:
$ less /proc/bus/input/devices

is quite similar for the two controllers:
Name="Logitech Logitech Cordless RumblePad 2"

Name="Logitech Logitech RumblePad 2"

I have tried using both RumblePad and Cordless as the name after -KRAL

If I put a different controller on completely, a sidewinder joystick, it says no input device matching "RumblePad" was found.

So it is seeing the wireless controller, it is just not allowing it to work.

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02 Apr 2011 22:15 #8396 by austin.mn
Ok, got it... The name of the button isn't a number. The name of the actual button it couldn't find was 'trigger' on the wireless controller the name for that button was a, and of course I had to change the other button names to b and c.

I found this out using this little tutorial:
#There are other mappings - from the terminal window, type "halrun -I" then load the
#"loadusr -W hal_input Dual" command, then use "show" to see all the inputs. To check
#the mapping, enter "loadusr halmeter -s pin input.0.btn-base" (as an example). In order
#to see what button or axes does what, you will have to waggle the joystick and write
#it down. There's no other way.

which was found on this page:
wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Usi...ntrol_Spindle_Speeds

I can't wait to move the machine around from across the shop... and now that I have gained a little more knowledge I will be that much more dangerous... I think it will be a while before I hit ninja status, but I do believe I have hit "kid with a slingshot" status.

Woo- Hoo I am going out to the shop to play.

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02 Apr 2011 23:54 #8399 by BigJohnT
Actually the easiest way is to just run Axis and use the Machine/Show Hal Configuration window and put all the pins in the watch window. Then start pressing buttons and moving sticks.

Too bad they are out of stock...

John

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03 Apr 2011 00:21 #8400 by austin.mn
can I run Axis without having EMC running. when I clicked the penguin on the desktop it wouldn't let emc boot up and All I got was the error screen that let me know I about the missing button.

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03 Apr 2011 00:36 #8401 by austin.mn
I picked the controller up used on ebay for $20

I knew the wired logitech worked fine, so I wanted to make sure and get the same brand. There are plenty of other ones on there, but I am happy with the one I got. I just did a quick test in the house and I can use it from any room in the house just fine. I don't think that there will be an issue in the shop.

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03 Apr 2011 00:51 #8402 by BigJohnT
austin.mn wrote:

can I run Axis without having EMC running. when I clicked the penguin on the desktop it wouldn't let emc boot up and All I got was the error screen that let me know I about the missing button.


You would have to comment out the offending code or just create a new one and add the line to load the gamepad.

John

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03 Apr 2011 16:50 #8416 by andypugh
I think you should be able to load a sample config (a p-port stepper one for simplicity) then load the gamepad in the "Show Hal Configuration" command entry box.
I haven't tried it though.

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