Recent Linux kernels include support for infrared remote controls and so the requirement for LIRC (Linux Infrared Remote Control) has been diminishing, but nevertheless some systems still use it. I was doing some work with LIRC recently and I couldn’t find a configuration file for my remote control, a Sony RM-ADP090. It should be possible to use the irrecord tool to create a LIRC configuration file for an unknown remote control, but for some reason this didn’t work for mine so in the end I created a configuration file manually: I worked out the scancode for each key by staring at the output from running mode2 -d /dev/lirc0 and took the header information from an existing configuration file.

(I was helped in my understanding by a fascinating article which explains how the infrared signalling works with a Sony remote control – you can find it at http://www.righto.com/2010/03/understanding-sony-ir-remote-codes-lirc.html .)

Interestingly I discovered that while most of the keys use 20 bit codes, some of the keys use 15 bit codes and a few of them use 12 bit codes, hence there are three separate sections in the configuration file.

In the end I never used the configuration file in anger, which means that it has had very little testing, but I’m posting it here in case it’s of use to anyone.

Vaughan

# 
# This lirc configuration file was constructed manually
# July 2020
#
# contributed by Vaughan Harper
#
# brand:   Sony 
# model:   RM-ADP090
# devices: Sony BDV-E2100 Home Cinema System
#
# remote layout:
# +-------------------------------------------------+
# | (EJECTCD)  (TV_SPEAKER)   (TV_POWER)    (POWER) |
# | (SLEEP)        (1)        (2)               (3) |
# | (BLUETOOTH)    (4)        (5)               (6) |
# | (FUNCTION)     (7)        (8)               (9) |
# | (FOOTBALL)   (AUDIO)      (0)        (SUBTITLE) |
# | (RED)        (GREEN)      (YELLOW)       (BLUE) |
# | (TOP MENU)            (UP)        (POP UP/MENU) |
# | (LEFT)                (OK)              (RIGHT) |
# | (RETURN)             (DOWN)           (OPTIONS) |
# | (SOUND_MODE_DOWN)    (HOME)     (SOUND_MODE_UP) |
# | (MUSIC_EQ)   (PREVIOUS)   (NEXT)          (SEN) |
# | (REWIND)              (PLAY)      (FASTFORWARD) |
# | (DISPLAY)            (PAUSE)             (STOP) |
# |             (VOLUMEUP)     (TV_VOL_UP)          |
# | (MUTE)                              (TV_SOURCE) |
# |            (VOLUMEDOWN)    (TV_VOL_DOWN)        |
# +-------------------------------------------------+

begin remote
# 20 bit key codes:

  name SONY_RM-ADP090
  bits           20
  flags SPACE_ENC|CONST_LENGTH
  eps            30
  aeps          100

  header       2468   531
  one          1255   530
  zero          660   530
  gap          44657
  min_repeat      2
  toggle_bit      0

      begin codes
          KEY_1                    0x0000000000000108
          KEY_2                    0x0000000000080108
          KEY_3                    0x0000000000040108
          KEY_4                    0x00000000000C0108
          KEY_5                    0x0000000000020108
          KEY_6                    0x00000000000A0108
          KEY_7                    0x0000000000060108
          KEY_8                    0x00000000000E0108
          KEY_9                    0x0000000000010108
          KEY_0                    0x0000000000090108

          KEY_POP_UP               0x0000000000058108
          KEY_TOP_MENU             0x0000000000098108

          KEY_DOWN                 0x000000000009E108
          KEY_LEFT                 0x000000000005E108
          KEY_RIGHT                0x00000000000DE108
          KEY_OK                   0x000000000003E108
          KEY_UP                   0x000000000001E108

          KEY_REWIND               0x00000000000CC108
          KEY_FASTFORWARD          0x000000000002C108
          KEY_PREVIOUS             0x000000000000C108
          KEY_NEXT                 0x000000000008C108

          KEY_EJECTCD              0x000000000003C108
          KEY_TV_SPEAKER           0x00000000000A210C
          KEY_BLUETOOTH            0x000000000008E10C

          KEY_FOOTBALL             0x00000000000E810E
          KEY_AUDIO                0x0000000000048108
          KEY_SUBTITLE             0x0000000000088108

          KEY_RED                  0x00000000000A010C
          KEY_GREEN                0x000000000006010C
          KEY_YELLOW               0x00000000000E010C
          KEY_BLUE                 0x000000000002010C

          KEY_RETURN               0x00000000000BE108 
          KEY_OPTIONS              0x00000000000CE108 
          KEY_SEN                  0x000000000000A10E 
          KEY_DISPLAY              0x0000000000018108 

      end codes

end remote

begin remote
# 15 bit key codes:

  name SONY_RM-ADP090_2
  bits           15
  flags SPACE_ENC|CONST_LENGTH
  eps            30
  aeps          100

  header       2468   531
  one          1255   530
  zero          660   530
  gap          44657
  min_repeat      2
  toggle_bit      0

      begin codes
          KEY_PLAY                 0x000000000000200B  
          KEY_STOP                 0x000000000000000B  
          KEY_PAUSE                0x000000000000400B   
          KEY_POWER                0x000000000000540A  
          KEY_SLEEP                0x000000000000030A  
          KEY_FUNCTION             0x0000000000004B0B  
          KEY_SOUND_MODE_DOWN      0x0000000000007B0B 
          KEY_HOME                 0x000000000000700B 
          KEY_SOUND_MODE_UP        0x0000000000003B0B 

          KEY_MUSIC_EQ             0x000000000000490B 

          KEY_MUTE                 0x000000000000140A 
          KEY_VOLUMEUP             0x000000000000240A 
          KEY_VOLUMEDOWN           0x000000000000640A 

      end codes

end remote

begin remote
# 12 bit key codes:

  name SONY_RM-ADP090_3
  bits           12
  flags SPACE_ENC|CONST_LENGTH
  eps            30
  aeps          100

  header       2468   531
  one          1255   530
  zero          660   530
  gap          44657
  min_repeat      2
  toggle_bit      0

      begin codes
          KEY_TV_POWER             0x0000000000000A90  
          KEY_TV_VOL_UP            0x0000000000000490 
          KEY_TV_VOL_DOWN          0x0000000000000C90 
          KEY_TV_SOURCE            0x0000000000000A50 
      end codes

end remote