Enhanced Keyboard Driver

Enhanced Keyboard Driver

[Alan Bryan]

Hi all,
Would it be feasable to modify the current keyboard
driver in such a way that it would log the last 1000
keystrokes pushed (possibly log it somewhere in /proc
or something)? When I say keystrokes, I mean
everything...even the ctrl and alt and shift bit keys

Something like this would greatly simplify the program
I am attempting to make.

Thanks

Alan

Re: Enhanced Keyboard Driver

[Jan-Benedict Glaw]

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On Thu, 2005-05-12 12:22:54 -0700, Alan Bryan <icemanind@yahoo.com> wrote:
> Would it be feasable to modify the current keyboard
> driver in such a way that it would log the last 1000
> keystrokes pushed (possibly log it somewhere in /proc
> or something)? When I say keystrokes, I mean
> everything...even the ctrl and alt and shift bit keys

That's simple if you do it in a hackish way, but maybe a bit different
to what you think. You'd extend the struct atkbd to contain a 1000 entry
array and in rolling index. Then stuff your current keypress into the
array and you're done.

You'd need to hack in the proc interface, though.

> Something like this would greatly simplify the program
> I am attempting to make.

What do you actually want to do?

MfG, JBG

-- 
Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481             _ O _
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Re: Enhanced Keyboard Driver

[Alan Bryan]

> 
> What do you actually want to do?
> 
specifically, I am trying to write a program similar
to the old Sidekick program of the DOS days. A
"daemon", if you will, that will popup on the screen
when a predetermined series of keystrokes are hit. The
program will then do various things, like record/play
macros, calculator, calendar, programmer's guide, etc
etc...

The part I'm having trouble with though is having it
popup when predetermined keystrokes are pushed. I
don't think Linux has a way to hook into the keyboard
(if I'm wrong, someone please tell me).

Alan

Re: Enhanced Keyboard Driver

[Dmitry Torokhov]

Hi Alan,

On 5/12/05, Alan Bryan <icemanind@yahoo.com> wrote:
> Hi all,
> Would it be feasable to modify the current keyboard
> driver in such a way that it would log the last 1000
> keystrokes pushed (possibly log it somewhere in /proc
> or something)? When I say keystrokes, I mean
> everything...even the ctrl and alt and shift bit keys
> 
> Something like this would greatly simplify the program
> I am attempting to make.
> 

What kind of information that you need is missing if you just read
input events from /dev/input/eventX?

-- 
Dmitry

Re: Enhanced Keyboard Driver

[Xavier Bestel]

Le jeudi 12 mai 2005 à 12:48 -0700, Alan Bryan a écrit :
> > 
> > What do you actually want to do?
> > 
> specifically, I am trying to write a program similar
> to the old Sidekick program of the DOS days. A
> "daemon", if you will, that will popup on the screen
> when a predetermined series of keystrokes are hit. The
> program will then do various things, like record/play
> macros, calculator, calendar, programmer's guide, etc
> etc...

Then a keyboard driver isn't the good solution. You'd better write a
userspace app which uses the XTEST extension.

	Xav

Re: Enhanced Keyboard Driver

[Joel Jaeggli]

On Thu, 12 May 2005, Alan Bryan wrote:

>>
>> What do you actually want to do?
>>
> specifically, I am trying to write a program similar
> to the old Sidekick program of the DOS days. A
> "daemon", if you will, that will popup on the screen
> when a predetermined series of keystrokes are hit. The
> program will then do various things, like record/play
> macros, calculator, calendar, programmer's guide, etc
> etc...

why not just use screen? or emacs as your shell?

> The part I'm having trouble with though is having it
> popup when predetermined keystrokes are pushed. I
> don't think Linux has a way to hook into the keyboard
> (if I'm wrong, someone please tell me).
>
> Alan
>
> -
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-- 
-------------------------------------------------------------------------- 
Joel Jaeggli  	       Unix Consulting 	       joelja@darkwing.uoregon.edu 
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Re: Enhanced Keyboard Driver

[Jan-Benedict Glaw]

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On Thu, 2005-05-12 12:48:05 -0700, Alan Bryan <icemanind@yahoo.com> wrote:
> > What do you actually want to do?

> The part I'm having trouble with though is having it
> popup when predetermined keystrokes are pushed. I
> don't think Linux has a way to hook into the keyboard
> (if I'm wrong, someone please tell me).

Well, this sounds more like a userspace problem. Write a small app that
select()s on /dev/input/event* and get the keystrokes from there. From
there, you'd even start applikations. That's a lot more complicated to
achieve in kernel space :-)

MfG, JBG

-- 
Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481             _ O _
"Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg  _ _ O
 fuer einen Freien Staat voll Freier Bürger" | im Internet! |   im Irak!   O O O
ret = do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TCPA));

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Re: Enhanced Keyboard Driver

[Dmitry Torokhov]

On 5/12/05, Alan Bryan <icemanind@yahoo.com> wrote:
> >
> > What do you actually want to do?
> >
> specifically, I am trying to write a program similar
> to the old Sidekick program of the DOS days. A
> "daemon", if you will, that will popup on the screen
> when a predetermined series of keystrokes are hit. The
> program will then do various things, like record/play
> macros, calculator, calendar, programmer's guide, etc
> etc...
> 
> The part I'm having trouble with though is having it
> popup when predetermined keystrokes are pushed. I
> don't think Linux has a way to hook into the keyboard
> (if I'm wrong, someone please tell me).
> 

Well, I don't think you want to tap into the kernel driver for that. I
mean if one uses X over the network I would assume that the popup
driver will run on the remote box while keyboard is on my local box.

The daemon is for X environment, right? You need to work with X
server, not kernel.

-- 
Dmitry