[vdr] Re: Remote Control over USB

[Stephan Schmidt <sschmidt@physik.hu-berlin.de>]

On 08 Jul 2003 12:46:00 +0200
Rene Bartsch <ml@bartschnet.de> wrote:

> Am Son, 2003-07-06 um 18.56 schrieb Ray Glendenning:
> > Hi
> > 
> > You do not have to make a device into an HID device (like a
> > keyboard, mouse,
> > or joystick) to be able to write a linux input driver for it.  The
> > logic and
> > translation/mapping could be done within the driver if the firmware
> > passes
> > raw data.
> > 
> 
> Of course, yes. But this means you have to install a driver module. So
> you have to be root and you might break your system if you mess up
> things. Some input/HID-class in the firmware would make the Igor-USB a
> real plug&pray device (or what is USB for?)!
> 
> Rene
Hmm, really difficult to answer. For reall HID devices like mices,
keyboards and most mass storage devices this is more or less true. But,
there is anywhere a but, this is no true HID because it has some special
features not fitting in to this scheme.
Another thing is that you also have for HID's to load a kernelmodule. Or
has this changed in the meantime? ;-) That the most, if not all, modern
distros load this modules by default does not mean that this modules
does not exist. 
For every USB-Networkadapter you have to load a module. 
I think that it is more or less no problem because people which don't
like this device don't need to load this module and have no risk.
For the others, no risk no fun. :-)

Greetings,

Stephan


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