[PD] [hid] on linux

Hans-Christoph Steiner hans at eds.org
Thu Dec 20 02:57:04 CET 2007


Please keep this on the list, there are a number of people that can  
answer these kinds of questions and the response might be of interest  
to others, and useful to have in the archives.

On GNU/Linux, [hid] uses the input.h /dev/input/event* interface.   
Any device that is supported by the Linux input event system and has  
a /dev/input/event* device will work.


On Dec 18, 2007, at 1:11 PM, jean-martin barbut wrote:

> HI,
> Thanks, it worked. But I have another question : I own a wacom  
> intuos 1
> tablet (serial connexion). I plug it on a usb-serial adapter, it works
> fine on Gnome-Ubuntu. The usb-serial adapter creates a port /dev/ 
> ttyUSB0
> wich drives the tablet. Is there a way to retrieve tablet info
> (position, pressure...) from [hid] ? If yes, how is it done ? If  
> no, do
> you know about an  object that could handle that ?
> I've noticed also that I can retrieve from the mouse, but not from the
> synaptic pad. I've all authorization for that /dev/input/event3...  
> It is
> read by [hid] as available, but I cat retrive anything...
> Thanks
> JMartin
> Le lundi 17 décembre 2007 à 00:10 -0500, Hans-Christoph Steiner a
> écrit :
>> You need to have permission to read the /dev/input/event* devices.
>> By default, you do not have permission on GNU/Linux.  Check the
>> archives for this list for more on that topic.
>> .hc
>> On Dec 14, 2007, at 6:22 PM, jean-martin barbut wrote:
>>> Hi,
>>> I'm trying to use [hid] tu retrieve joystick infos on a linux box
>>> (Ubuntu Studio 7.10) : no joystick recognition. On Mac, if I  
>>> click on
>>> the "print" msg box, I have a list of all devices available. On  
>>> linux
>>> clicking on "print" doesn't list anything. My joystick is installed
>>> properly because I can use it with the [pd_joystick] extra.
>>> Why dont I just use [pd_joystick] ? Because I need to use 2  
>>> joysticks
>>> and only the first one is recognized on [pd_joystick]...
>>> Other thing : if you forget to put the toggle box to off when you
>>> select
>>> another device number, pd-extended (0.39) just close (brutally...).
>>> Regards,
>>> Jean-Martin (esox)
>>> _______________________________________________
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>> --------------------------------------------------------------------- 
>> ---
>> ----
>> All mankind is of one author, and is one volume; when one man dies,
>> one chapter is not torn out of the book, but translated into a better
>> language; and every chapter must be so translated.... -John Donne


Man has survived hitherto because he was too ignorant to know how to  
realize his wishes.  Now that he can realize them, he must either  
change them, or perish.    -William Carlos Williams

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