On Tue, 1 Dec 2009, Devin Heitmueller wrote:

On Tue, Dec 1, 2009 at 12:03 PM, Mauro Carvalho Chehab
<mche...@redhat.com> wrote:
Just taking an example from the dibcom0700 driver (as the same driver
supports several different RC5 and NEC codes at the same time),
the kernel table has several keycodes added there, all working
at the same time. Providing that the scancodes won't overlap, you can
map two different scancodes (from different IR's) to return the same
keycode (table is not complete - I just got a few common keycodes):


Just to be clear, the dib0700 does not actually support receiving RC5
or NEC codes at the same time.  You have to tell the chip which mode
to operate in, via a REQUEST_SET_RC to the firmware (see
dib0700_core.c:405).  The em28xx works the same way (you have to tell
it what type of IR format to receive).

The fact that the driver currently uses the same lookup table for both
types of remote controls however, was perhaps not the best design
choice.  It really should be separated out, and merged with the
regular ir-functions.c.  I just never got around to it.

I did not follow all the discussion, still I have a comment:

I will soon work on a device where it is the driver who is doing the decoding of the IR-frames. It is (maybe, I'm still missing some pieces to be sure) possible to receive different protocols at the same time with this hardware.


Patrick http://www.kernellabs.com/
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