Re: [PATCH 1/1] Input/Joystick Driver: add support AD7142 joystick driver (v2)

From: Bryan Wu
Date: Fri Apr 25 2008 - 06:10:24 EST


On Sat, Apr 19, 2008 at 1:15 AM, Dmitry Torokhov
<dmitry.torokhov@xxxxxxxxx> wrote:
> Hi Bryan,
>
>
> On Thu, Mar 27, 2008 at 11:38:30AM -0700, Bryan Wu wrote:
> > + input->keybit[BIT_WORD(BTN_BASE)] = BIT_MASK(BTN_BASE) |
> > + BIT_MASK(BTN_BASE2) |
> > + BIT_MASK(BTN_BASE3) |
> > + BIT_MASK(BTN_BASE4);
> > + input->keybit[BIT_WORD(KEY_UP)] |= BIT_MASK(KEY_UP) |
> > + BIT_MASK(KEY_DOWN) |
> > + BIT_MASK(KEY_LEFT) |
> > + BIT_MASK(KEY_RIGHT);
> > +
>
> Why don't you use REL_X/REL_Y to report directional movement? Using
> buttons for that is pretty unusual.
>

In our development board, it includes UP/DOWN/LEFT/RIGHT 4 buttons. So
this driver matches this.
Please found some information about the hardware as below:
http://docs.blackfin.uclinux.org/doku.php?id=capacitance_touch_sensors&s[]=ad7142

Thanks
-Bryan
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