> > I think its effectively a good choice for a standard mouse usage. But
> > when I want to use a grapic tablet (a wacom intuos for instance), I'll
> > need to get stylus pressure information as well as stylus unique ID. And
> > if I want to manage a complementary keyboard (a key pad for instance), I
> > think its the same problem.
>
> For this type of access, /dev/input/eventX was designed. It'll give you
> all you describe.

I have tried it but I cannot make it work. I run it under kernel 2.2.18 and 
2.4.0 (SuSE 7.1 installation). If it can work, I effectively think its the 
better choice :-)

> For a more low level access, /dev/hiddevX was designed. You shouldn't need
> direct USB access.

I know about it but it seems that (by default), every few devices are 
accessible through it...


> > So I prefer to use the patch mentionned in Dan Streetman and David
> > Brownell... or wait for its integration in futur 2.4 kernels...
>
> It's not nice if a simple lsusb disconnects all devices and reconnects
> them again after exiting. It'll cause a lot of mess, because the devices
> will be assigned different numbers and running applications will lose
> access to them.

I understand your comments and fully agree on. The fact is I just want to 
make some research stuff about HCI with our engineer students for this year. 
For a futur and "nice" implementation of HID access, I find the best solution 
is to wait for more "stable" things under new kernel versions... ?


Regards,
Bod


-- 
Olivier Beaudoux
ESEO
4 rue Merlet de la Boulaye, BP 926
49009 Angers cedex 01
Tel: +33 (2) 41-86-67-67 
      +33 (2) 41-86-67-05 (ligne directe)
Fax:  +33 (2) 41-87-99-27
Email: [EMAIL PROTECTED]



_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel

Reply via email to