On Mon, Jun 25, 2012 at 7:56 PM, Jarod Wilson [off-list ref] wrote:

On Mon, Jun 25, 2012 at 07:39:25PM +0530, Dharam Kumar wrote:

quoted

Hi,
I'm working on a module which is an input device and hence it needs to
report certain key events.

While browsing through the <linux/input.h>, I did find most of the
key-codes(which I need to use) already defined but not all.

Few of the KEY_xxx which i could not find are:

a.) A Key for going to the previous channel.

I believe that's what this one is intended for:

#define KEY_PREVIOUS            0x19c

Hmm..I looked at it, but i was not sure ,whether it is the right key
code for the 'Previous channel'.
To be specific about what the key is supposed to do:
"Select the channel used before most recent new channel selection."
Also, there is another define:
#define KEY_LAST                     0x195  /* Recall last */
confusing...No?

quoted

b.) Keys for Moving upper-right, lower-right, upper-left and
lower-left direction(probably a GUI(or a grid of icons),where you move
diagonally)

Sounds a bit like joystick functionality, which already exists.

Will you please be bit more specfic? Which keys/defines exactly you
are talking about?
Apologies for me being so naive. :)

quoted

d.) A key for Subpicture (this 'subpicture' key is defined in CEA-931C).

Could have sworn there was a picture-in-picture button, which may or may
not be the same thing, but I don't see it now...

--
Jarod Wilson
jarod@redhat.com

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