(Don't worry if you see 37fd or 37bd. That's normal; bit 11 is toggled by
the remote control on each new key press. Bits 12 to 15 are fixed; bits 0
to
5 are the key code.)
Plugging the numbers into ((value >> 6) & 0x1F), we get 0x1F and 0x1E.
Sorry, I'm confused. How do we arrive at 0x1F and 0x1E ?
Here's where I'm up to now:
[root@media ~]# echo 1 >/sys/module/cx88xx/parameters/ir_debug
[root@media ~]# input-events -t 240 2
/dev/input/event2
bustype : BUS_PCI
vendor : 0x70
product : 0x9002
version : 1
name : "cx88 IR (Hauppauge Nova-T DVB-T"
phys : "pci-0000:00:0a.2/ir0"
bits ev : EV_SYN EV_KEY EV_REP
waiting for events
08:23:22.630077: EV_KEY KEY_MENU pressed
08:23:22.630083: EV_SYN code=0 value=0
08:23:22.877343: EV_KEY KEY_MENU released
08:23:22.877349: EV_SYN code=0 value=0
08:23:31.256247: EV_KEY KEY_MENU pressed
08:23:31.256253: EV_SYN code=0 value=0
08:23:31.503517: EV_KEY KEY_MENU released
08:23:31.503523: EV_SYN code=0 value=0
------------>>> above: Hit the 'menu' key on the R808, and then the 'mute'
key on my Phillips TV remote
and the 'dmesg' for that action:
cx88[0] IR: biphase decoded: 3fcd
ir samples:
###___##___###___###___###___##___###___######___##______###___######______##_____________________________________________________
cx88[0] IR: biphase decoded: 3fcd
ir samples:
###___#####______###___###___##___###___######___##______###___######______##_______________________________________________
cx88[0] IR: biphase decoded: 37cd
ir samples:
###___######______##___###___###___###___#####___###______##___######______###______________________________________________________________
cx88[0] IR: biphase decoded: 37cd
ir samples:
##___###___###___###___##___###___###___#####___###______###___#####______###_____________________________________
cx88[0] IR: biphase decoded: 300d
ir samples:
##___######___###___###___##____##___###___###___###______##___######______###________________________________________
cx88[0] IR: biphase decoded: 300d
ir samples:
###___##___######___###___###___###___##___###___###______###___#####______###__________________________________________
cx88[0] IR: biphase decoded: 380d
ir samples:
###___###___######___##___###___###___###___###___##______###___######______###___________________________________________________________
cx88[0] IR: biphase decoded: 380d
ir samples:
###___###___###___##___###___###___###___#####___###______##___######______###____________________________________________
3fcd/37cd = Hauppauge menu button
300d/380d = Phillips mute button
------------>>> above: As you can see, the cx88xx is seeing different
codes, but the IR decode is seeing it as the same keystroke...
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