[SOLVED] IR, no output from IRW and not work

mailra · July 16, 2017 at 9:51 PM

Hello everyone,

i am stuck with configuring IR remote (from Microlab Pro 3) can't get it work. Here is there full story - what was done:

1. Added - "dtoverlay=lirc-rpi,gpio_in_pin=25" to config.txt (as i use iqaudio pi-dac+ which is mapped IR pin to 25)

2. dmesg | grep lirc

Code

[    3.576349] lirc_dev: IR Remote Control driver registered, major 244
[    3.620614] lirc_rpi: module is from the staging directory, the quality is unknown, you have been warned.
[    4.551568] lirc_rpi: auto-detected active low receiver on GPIO pin 25
[    4.551766] lirc_rpi lirc_rpi: lirc_dev: driver lirc_rpi registered at minor = 0
[    4.551769] lirc_rpi: driver registered!
[    4.775897] input: lircd-uinput as /devices/virtual/input/input2
[    4.899723] input: eventlircd as /devices/virtual/input/input3

3. killall lircd

4. mode2 -d /dev/lirc0

Code

Warning: cannot open /etc/lirc/lirc_options.conf
Warning: cannot open /etc/lirc/lirc_options.conf
Using driver default on device /dev/lirc0
Trying device: /dev/lirc0
Using device: /dev/lirc0
Warning: Running as root.
space 8083181
pulse 8980
space 4536
pulse 624
space 555
pulse 620
space 550
pulse 619
space 557
pulse 621
space 560
pulse 618
space 559
pulse 620
space 557
pulse 621
space 556
pulse 623
space 558
pulse 621
space 1669
pulse 627
space 1665
pulse 622
space 1667
pulse 624
space 1672
pulse 620
space 1676
pulse 620
space 1670
pulse 622
space 1663
pulse 628
space 1668
pulse 619
space 1671
pulse 631
space 547
pulse 626
space 551
pulse 638
space 547
pulse 621
space 1667
pulse 620
space 558
pulse 620
space 555
pulse 623
space 557
pulse 632
space 545
pulse 624
space 1673
pulse 614
space 1679
pulse 617
space 1669
pulse 627
space 551
pulse 597
space 1693
pulse 624
space 1666
pulse 625
space 1671
pulse 621
space 39930
pulse 9004
space 2256
pulse 626
^C

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So IR - receiver works fine.

5. Tried this: ir-keytable -p LIRC from guide: Guide To lirc rpi GPIO Receiver - LibreELEC

Code

Couldn't find any node at /sys/class/rc/rc*.

So just skipped.

6. irrecord /storage/.config/lircd.conf

Created for me ml3.lircd.conf so i have just copied and renamed it to lircd.conf

Code

begin remote

  name  ml3
  bits           32
  flags SPACE_ENC|CONST_LENGTH
  eps            30
  aeps          100

  header       9017  4487
  one           579  1666
  zero          579   550
  ptrail        584
  repeat       9020  2234
  gap          108065
  toggle_bit_mask 0x0
  frequency    38000

      begin codes
          KEY_MUTE                 0x00FF00FF 0x00000000
          KEY_VOLUMEUP             0x00FF8877 0x00000000
          KEY_VOLUMEDOWN           0x00FF08F7 0x00000000
      end codes

end remote

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7. Reboot, and that's it - configured buttons do not work, irw - shows nothing.

8. Tried Added/Created Lircmap.xml added to ~/.kodi/userdata

Code

<lircmap>
<remote device="ml3">
                <volumeplus>KEY_VOLUMEUP</volumeplus>
                <volumeminus>KEY_VOLUMEDOWN</volumeminus>
                <mute>KEY_MUTE</mute>
</remote>
</lircmap>

No help.

Almost forgot:

RP3 (IR - Infrared Receiver (TSOP38238)), LE:8.0.2 (Kernel 4.9.29), Build: Kodi 17.3, Git 147cec4, (25.05.2017)

Will be appreciated for any help.

**HiassofT** · July 17, 2017 at 6:39 AM

Could you try with the gpio-ir overlay instead of the lirc-rpi overlay?

Just change your config.txt to contain this:

Code

dtoverlay=gpio-ir,gpio_pin=25

Also disable Lirc in LibreELEC Settings -> Services.

Then follow this guide to configure the remote using ir-keytable: WD TV Live remote

Using irrecord to manually create a lircd.conf file has always been problematic. In your case it created an invalid file - you'd have to remove the 0x00000000 from the keycodes.

Using a remote with a IR standard protocol like rc-5, rc-6 or nec and the in-kernel decoding (which is available if you use gpio-ir) avoids most of these pitfalls.

so long,

Hias

mailra · July 17, 2017 at 6:19 PM

Dear HiassofT

Thank you for your help. Before trying gpio-ir, i did try to correct lircd.conf and you was absolutely correct - generated file is invalid because of 0x00000000, so i removed these zeros sequences.

Code

begin remote
  name  ml3
  bits           32
  flags SPACE_ENC|CONST_LENGTH
  eps            30
  aeps          100
  header       9017  4487
  one           579  1666
  zero          579   550
  ptrail        584
  repeat       9020  2234
  gap          108065
  toggle_bit_mask 0x0
  frequency    38000
      begin codes
          KEY_MUTE                 0x00FF00FF
          KEY_VOLUMEUP             0x00FF8877
          KEY_VOLUMEDOWN           0x00FF08F7
      end codes
end remote

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Also just in case i have removed lircmap.xml which i have created desperately when was trying last time to solve that.

After reboot - it magically works! So all problem was in lircd.conf generated file.

Thanks for help and support.