How to use ir remote on android

[Tom Cubie]

Hi,

The cubieboard has an IR receiver but do not come with a IR remote,
one friend of me in China asked if he can control his cubieboard with
unused key on the TV remote, then he can use one remote to control
both TV and the board.

First i found that the IR driver has some ir code check in
https://github.com/linux-sunxi/linux-sunxi/blob/sunxi-3.0/drivers/input/keyboard/sun4i-ir.c#L459

After disabling the ir code check, i can get event from two ir remote
here i have. To test if your remote can be recognized, you can try the
following:

connect your board via mini usb cable

adb pull drivers/input/keyboard/sun4i-ir.ko sun4i-ir.ko.bak
adb shell mount -o remount,rw /system
wget http://tom.linux-sunxi.org/cubieboard/sun4i-ir.ko #built with
IR_CHECK_ADDR_CODE undefined.
adb push sun4i-ir.ko /system/vendor/modules/
adb reboot

then you can test the remote with android getevent
adb shell
root@android:/ #
root@android:/ #
root@android:/ # getevent
add device 1: /dev/input/event4
name: "sun4i-ir"
add device 2: /dev/input/event3
name: "HID 1220:0008"
could not get driver version for /dev/input/mouse0, Not a typewriter
add device 3: /dev/input/event2
name: "HID 1220:0008"
add device 4: /dev/input/event0
name: "sun4i-keyboard"
could not get driver version for /dev/input/mice, Not a typewriter
add device 5: /dev/input/event1
name: "axp20-supplyer"

Now press the remote, if the remote can be recognized, there will be
something like,
/dev/input/event4: 0001 000c 00000001
/dev/input/event4: 0000 0000 00000000
/dev/input/event4: 0001 000c 00000002
/dev/input/event4: 0000 0000 00000001
/dev/input/event4: 0001 000c 00000000
/dev/input/event4: 0000 0000 00000000

000c is the code of the key pressed.

Now you can define this key's function in android.
adb pull /system/usr/keylayout/sun4i-ir.kl
edit sun4i-ir.kl you will see something like:
key 79 BACK WAKE_DROPPED
You can assign the function of key you just pressed to anything you
like, but notice that getevent shows the code in HEX, but sun4i-ir.kl
is decimal.

This may solve the volume key worry and the zoom and pinch problem
reported in the g+ community.

--
Keep simple, stay foolish.

[Diogo Carvalho]

Hi,

 

I'm using the image TvBox 2.2 and I don't have replaced the sun4i-ir.ko with yours.

With getevent I can see the remote be recognized.

I have remaped the keys in sun4i-ir.kl but it doesn't work.

Some keys on my remote control are writing numbers and letters, and in sun4i-ir.kl there are no defined keys that work like a keyboard.

So it is possible that the sun4i-ir.kl is not used and it use another keylayout file?

[Egoitz Esteban]

Doesnt work with sony bravia IR Remote :(

[Kiran Kumar chintagumpala]

Hi,

This works awesome for me. But i have problem with power.


With IR remote  I am able to switch off the board but unable to wake up.


Please tell me how to wake up the board with IR remote.

Thanks
Kiran Kumar

[Patrick Wood]

I'm not sure that's possible. You may have to put the board into a low power sleep mode, e.g., CPU @60mhz, video, net, usb powered down, etc.

[Kiran Kumar chintagumpala]

Hi Patrick,

Sorry for delay reply and thanks for your reply. We will try this.

[Murat Jumashev]

Hi, Tom,

In CubieTruck getevent looks like this:

root@android:/ # getevent

add device 1: /dev/input/event2

  name:     "vmouse"

could not get driver version for /dev/input/mouse0, Not a typewriter

add device 2: /dev/input/event1

  name:     "sun7i-ir"

add device 3: /dev/input/event0

  name:     "sw-keyboard"

could not get driver version for /dev/input/mice, Not a typewriter

add device 4: /dev/input/event3

  name:     "axp20-supplyer"

Should we use new sun7i-ir.ko ?

пятница, 11 января 2013 г., 16:12:40 UTC+6 пользователь Tom Cubie написал:

[Patrick Wood]

Yes, but newer kernels will have the merged sunxi-ir instead.

[Murat Jumashev]

Hey Patrick, 

Thanks! Can you give more information on this, please? I cannot couple IR remote with my CubieTruck.

воскресенье, 10 ноября 2013 г., 23:56:14 UTC+6 пользователь Patrick Wood написал:

[cubie...@gmail.com]

Hi.
Exactly how to undefined IR_CHECK_ADDR_CODE.
I'm going to build sun7i-ir.ko

[Felix Hsiao]

Dear All,

Anyone has sun7i-ir.ko with undefined IR_CHECK_ADDR_CODE and related sun7i-ir.kl for cubieboard2? Or direct me how build them. I'd like to develop a android app to get the ir event and do some actions.

Thanks.

Felix

[nayden penev]

Here is mine build for 3.4.39

https://drive.google.com/file/d/0B_TpFCKKi7jbZ05MR3owbzRTRlU/edit?usp=sharing

If you want to compile it yourself find the "ir-keymap.h" file in "linux-3.4/drivers/input/keyboard" and comment following line:

#define IR_CHECK_ADDR_CODE.

Recompile, upload it to your board replacing the old one and edit the key layout according to the IR remote you got. 

[Python Jungle]

You make it for Cubieboard2?

On my Cubietruck (3.4.39) this module can't loading.
"Exec format error"

суббота, 5 апреля 2014 г., 9:31:32 UTC+3 пользователь nayden penev написал: