Multikey autorepetition

Multikey autorepetition

[Антон Ерофеевский]

sory for my english

Multikey autorepetition in linux and x-win

Has decided to write for this purpose - that most to understand - whether is it in linux a defect or and has been conceived

The basic question in that is that if to press 2 keys - why one repeats only?

Will tell I in a spreadsheet I press downwards and to the right - and in general that I expect that the cursor will run on a diagonal - but it прет only in one direction

Why? It is a defect or and should be?

I for myself have found in a kernel and in иксах places that for it answer - they strangely enough are almost identical that in a kernel that in иксах

And the theory is that - if not to concern ps/2 keyboards - that an essence here in what usb the keyboard sends in a computer of purely event of pressing and unpressing keys - and it is 8 byte package - 1 byte a condition of keys of modifiers - 2 byte a reserve - 3-8 bytes codes of the pressed keys
For this reason usb the keyboard theoretically  to serve only 6 simultaneous pressing (without modifiers)

here - a car usb the key at all is not engaged in repetition - in system that in a kernel that in x-win - for autorepetition the usual timer answers - which joins by key pressing - and through the necessary intervals adds pressing
But it is made so - that autorepeat only one key

Here and at me the question is a defect or and should be?
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Re: Multikey autorepetition

[Dmitry Torokhov]

Hi Anton,

On Sun, Jul 25, 2010 at 10:27:28PM +0400, Антон Ерофеевский wrote:
> sory for my english
> 
> Multikey autorepetition in linux and x-win
> 
> Has decided to write for this purpose - that most to understand -
> whether is it in linux a defect or and has been conceived
> 
> The basic question in that is that if to press 2 keys - why one
> repeats only?

The kernel supports single-key software repetition so unless the device
itself does autorepeat then only the last key will be automatically
repeated.

I believe most of the hardware that has autorepeat capabilities
does it for the last pressed key as well.

-- 
Dmitry
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Re: Multikey autorepetition

[Peter Hutterer]

On Mon, Jul 26, 2010 at 01:59:06AM -0700, Dmitry Torokhov wrote:
> Hi Anton,
> 
> On Sun, Jul 25, 2010 at 10:27:28PM +0400, Антон Ерофеевский wrote:
> > sory for my english
> > 
> > Multikey autorepetition in linux and x-win
> > 
> > Has decided to write for this purpose - that most to understand -
> > whether is it in linux a defect or and has been conceived
> > 
> > The basic question in that is that if to press 2 keys - why one
> > repeats only?
> 
> The kernel supports single-key software repetition so unless the device
> itself does autorepeat then only the last key will be automatically
> repeated.
> 
> I believe most of the hardware that has autorepeat capabilities
> does it for the last pressed key as well.

same for the X server, we ignore hardware/kernel autorepeat completely these
days and only do software repeat. In doing so, we only repeat one key at at
time though.
 
Cheers,
  Peter
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