Re: [PATCH v2] input: usb keyboard: fix CTRL+C

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On Wed, 24 Feb 2016 19:12:27 +0100
Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote:

> On Wed, Feb 24, 2016 at 06:07:01PM +0300, Peter Mamonov wrote:
> > On Wed, 24 Feb 2016 17:21:48 +0300
> > Antony Pavlov <antonynpavlov@xxxxxxxxx> wrote:
> > 
> > > On Wed, 24 Feb 2016 13:48:45 +0300
> > > Peter Mamonov <pmamonov@xxxxxxxxx> wrote:
> > > 
> > > > Signed-off-by: Peter Mamonov <pmamonov@xxxxxxxxx>
> > > > Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> > > > ---
> > > >  drivers/input/input.c    | 4 +++-
> > > >  drivers/input/keymap.c   | 4 ++++
> > > >  include/input/keyboard.h | 1 +
> > > >  3 files changed, 8 insertions(+), 1 deletion(-)
> > > > 
> > > > diff --git a/drivers/input/input.c b/drivers/input/input.c
> > > > index ad7400f..1c6891c 100644
> > > > --- a/drivers/input/input.c
> > > > +++ b/drivers/input/input.c
> > > > @@ -164,7 +164,9 @@ static void input_console_notify(struct
> > > > input_notifier *in, if (ic->modstate[4] || ic->modstate[5])
> > > >  		modstate |= 1 << 2;
> > > >  
> > > > -	if (modstate & (1 << 0))
> > > > +	if (modstate & (1 << 1))
> > > > +		ascii = keycode_bb_ctrl_keys[ev->code];
> > > > +	else if (modstate & (1 << 0))
> > > >  		ascii = keycode_bb_shift_keys[ev->code];
> > > >  	else
> > > >  		ascii = keycode_bb_keys[ev->code];
> > > > diff --git a/drivers/input/keymap.c b/drivers/input/keymap.c
> > > > index 79ca461..7e443d1 100644
> > > > --- a/drivers/input/keymap.c
> > > > +++ b/drivers/input/keymap.c
> > > > @@ -167,3 +167,7 @@ uint8_t keycode_bb_shift_keys[NR_KEYS] = {
> > > >  	[KEY_KPEQUAL] =		'=',
> > > >  	[KEY_KPCOMMA] =		',',
> > > >  };
> > > > +
> > > > +uint8_t keycode_bb_ctrl_keys[NR_KEYS] = {
> > > > +	[KEY_C] =		CTL_CH('c'),
> > > > +};
> > > 
> > > 
> > > It looks like we still have empty array with NR_KEYS bytes in it.
> > > 
> > > Can we just drop it and satisfy with short "special case" C-code
> > > for control modifier handling?
> > 
> > Probably I've misunderstood Sasha.
> > 
> > Sasha, did you mean to eliminate the CTRL-keymap completely?
> 
> No, I didn't, although that would be an option aswell. It would safe
> us a few more bytes in the binary. The question is, how many more
> keys are in the CTRL map that are interesting for us? Are there more
> than CTRL-C? 

The CTRL+D combo is used for "save & quit" in the edit program.

> If yes, then it's probably better to keep the map. If
> not, a special CTRL-C case in code might be the better option.
> 
> Sascha
> 


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