====== Step by Step ir-serial mit ir-keytable ======

  Die hier beschriebene Konfiguration ist inzwischen in das Setup übernommen worden.

===== Liste der devices anzeigen =====

<code>
BVDR> ir-keytable
Found /sys/class/rc/rc0/ (/dev/input/event14) with:
        Driver cx88xx, table rc-tevii-nec
        Supported protocols: lirc
        Enabled protocols: lirc
        Name: cx88 IR (TeVii S464 DVB-S/S2)
        bus: 1, vendor/product: d464:9022, version: 0x0001
        Repeat delay = 500 ms, repeat period = 125 ms
</code>

hier sieht man nur das device der DVB Karte - dieses soll allerdings nicht genutzt werden.

==== device anlegen ====
Da serial nicht automatisch erkannt werden kann muss es manuel getriggert werden:

festlegen an welchem COM Port es angeschloßen ist(hier com1)
<code>setserial /dev/ttyS0 uart none</code>

nun die Treiber laden:
<code>modprobe serial-ir</code>

dmesg sagt nun:
<code>[ 3689.460620] serial_ir serial_ir.0: auto-detected active low receiver
[ 3689.483767] Registered IR keymap rc-rc6-mce
[ 3689.484744] IR RC6 protocol handler initialized
[ 3689.506815] rc rc1: Serial IR type home-brew as /devices/platform/serial_ir.0/rc/rc1
[ 3689.506875] input: Serial IR type home-brew as /devices/platform/serial_ir.0/rc/rc1/input18
[ 3689.507978] ir-keytable[3573]
[ 3689.516070] rc rc1: lirc_dev: driver serial_ir registered at minor = 1</code>

==== Device Liste überprüfen ====
nun überprüfen wir die Device List
<code>BVDR> ir-keytable
Found /sys/class/rc/rc1/ (/dev/input/event15) with:
        Driver serial_ir, table rc-rc6-mce
        Supported protocols: lirc rc-5 rc-5-sz jvc sony nec sanyo mce_kbd rc-6 sharp xmp
        Enabled protocols: lirc rc-6
        Name: Serial IR type home-brew
        bus: 25, vendor/product: 0001:0001, version: 0x0100
        Repeat delay = 500 ms, repeat period = 125 ms
Found /sys/class/rc/rc0/ (/dev/input/event14) with:
        Driver cx88xx, table rc-tevii-nec
        Supported protocols: lirc rc-6
        Enabled protocols: lirc
        Name: cx88 IR (TeVii S464 DVB-S/S2)
        bus: 1, vendor/product: d464:9022, version: 0x0001
        Repeat delay = 500 ms, repeat period = 125 ms
BVDR>
</code>

das Device rc1 ist nun vorhanden aber es empfängt noch keine Daten, da das Protokol falsch ist.

==== device test mit evtest ====
<code>BVDR> evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
...
/dev/input/event14:     cx88 IR (TeVii S464 DVB-S/S2)
/dev/input/event15:     Serial IR type home-brew
Select the device event number [0-15]:
</code>
event15 ist unser Empfänger er hat aber noch kein passendes Protokoll

<code>evtest /dev/input/event15
</code>
liefert noch keine TASTEN beim drücken.

=== Protokoll ermitteln ===

zwei möglichkeiten.

== Protokolle einzeln laden ==
<code>BVDR> ir-keytable -s rc1 -p NEC
Protocols changed to nec
</code>
NEC ersetzen durch den Namen des zu testenden Protokolls
in unserem Fall sagt ir-keytable:
<code>Supported protocols: lirc rc-5 rc-5-sz jvc sony nec sanyo mce_kbd rc-6 sharp xmp</code>

nun mit evtest Testen:
<code>BVDR> evtest /dev/input/event15
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "Serial IR type home-brew"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 28 (KEY_ENTER)
    Event code 103 (KEY_UP)
    Event code 105 (KEY_LEFT)
    Event code 106 (KEY_RIGHT)
    Event code 108 (KEY_DOWN)
    Event code 111 (KEY_DELETE)
    Event code 113 (KEY_MUTE)
    Event code 114 (KEY_VOLUMEDOWN)
    Event code 115 (KEY_VOLUMEUP)
    Event code 119 (KEY_PAUSE)
    Event code 128 (KEY_STOP)
    Event code 142 (KEY_SLEEP)
    Event code 161 (KEY_EJECTCD)
    Event code 164 (KEY_PLAYPAUSE)
    Event code 167 (KEY_RECORD)
    Event code 168 (KEY_REWIND)
    Event code 174 (KEY_EXIT)
    Event code 207 (KEY_PLAY)
    Event code 208 (KEY_FASTFORWARD)
    Event code 210 (KEY_PRINT)
    Event code 212 (KEY_CAMERA)
    Event code 224 (KEY_BRIGHTNESSDOWN)
    Event code 225 (KEY_BRIGHTNESSUP)
    Event code 226 (KEY_MEDIA)
    Event code 352 (KEY_OK)
    Event code 356 (KEY_POWER2)
    Event code 358 (KEY_INFO)
    Event code 365 (KEY_EPG)
    Event code 366 (KEY_PVR)
    Event code 368 (KEY_LANGUAGE)
    Event code 369 (KEY_TITLE)
    Event code 370 (KEY_SUBTITLE)
    Event code 372 (KEY_ZOOM)
    Event code 373 (KEY_MODE)
    Event code 377 (KEY_TV)
    Event code 385 (KEY_RADIO)
    Event code 386 (KEY_TUNER)
    Event code 387 (KEY_PLAYER)
    Event code 389 (KEY_DVD)
    Event code 392 (KEY_AUDIO)
    Event code 393 (KEY_VIDEO)
    Event code 398 (KEY_RED)
    Event code 399 (KEY_GREEN)
    Event code 400 (KEY_YELLOW)
    Event code 401 (KEY_BLUE)
    Event code 402 (KEY_CHANNELUP)
    Event code 403 (KEY_CHANNELDOWN)
    Event code 407 (KEY_NEXT)
    Event code 412 (KEY_PREVIOUS)
    Event code 425 (KEY_PRESENTATION)
    Event code 430 (KEY_MESSENGER)
    Event code 512 (KEY_NUMERIC_0)
    Event code 513 (KEY_NUMERIC_1)
    Event code 514 (KEY_NUMERIC_2)
    Event code 515 (KEY_NUMERIC_3)
    Event code 516 (KEY_NUMERIC_4)
    Event code 517 (KEY_NUMERIC_5)
    Event code 518 (KEY_NUMERIC_6)
    Event code 519 (KEY_NUMERIC_7)
    Event code 520 (KEY_NUMERIC_8)
    Event code 521 (KEY_NUMERIC_9)
    Event code 522 (KEY_NUMERIC_STAR)
    Event code 523 (KEY_NUMERIC_POUND)
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)
Key repeat handling:
  Repeat type 20 (EV_REP)
    Repeat code 0 (REP_DELAY)
      Value    500
    Repeat code 1 (REP_PERIOD)
      Value    125
Properties:
Testing ... (interrupt to exit)
Event: time 1523714087.984388, type 4 (EV_MSC), code 4 (MSC_SCAN), value 1f
Event: time 1523714087.984388, -------------- SYN_REPORT ------------
Event: time 1523714088.117117, type 4 (EV_MSC), code 4 (MSC_SCAN), value 1f
Event: time 1523714088.117117, -------------- SYN_REPORT ------------
Event: time 1523714088.746571, type 4 (EV_MSC), code 4 (MSC_SCAN), value 00
Event: time 1523714088.746571, -------------- SYN_REPORT ------------
Event: time 1523714088.877285, type 4 (EV_MSC), code 4 (MSC_SCAN), value 00
Event: time 1523714088.877285, -------------- SYN_REPORT ------------
</code>

Es sieht gut aus - wir haben scan codes ABER noch keine Zuweißung.

== EINFACH ALLE Protokolle laden ==
Man lädt einfach mit -p alle Protokolle die laut ir-keytable unterstützt werden aufeinmal rein:
<code>BVDR> ir-keytable -s rc1 -p lirc -p rc-5 -p rc-5-sz -p jvc -p sony -p nec -p sanyo -p mce_kbd -p rc-6 -p sharp -p x
mp
Protocols changed to lirc rc-5 rc-5-sz jvc sony nec sanyo mce_kbd rc-6 sharp xmp
</code>

Damit sollten aufjedenfall wieder keycodes funktionieren!
<code>
BVDR> evtest /dev/input/event15
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "Serial IR type home-brew"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 28 (KEY_ENTER)
    Event code 103 (KEY_UP)
    Event code 105 (KEY_LEFT)
    Event code 106 (KEY_RIGHT)
    Event code 108 (KEY_DOWN)
    Event code 111 (KEY_DELETE)
    Event code 113 (KEY_MUTE)
    Event code 114 (KEY_VOLUMEDOWN)
    Event code 115 (KEY_VOLUMEUP)
    Event code 119 (KEY_PAUSE)
    Event code 128 (KEY_STOP)
    Event code 142 (KEY_SLEEP)
    Event code 161 (KEY_EJECTCD)
    Event code 164 (KEY_PLAYPAUSE)
    Event code 167 (KEY_RECORD)
    Event code 168 (KEY_REWIND)
    Event code 174 (KEY_EXIT)
    Event code 207 (KEY_PLAY)
    Event code 208 (KEY_FASTFORWARD)
    Event code 210 (KEY_PRINT)
    Event code 212 (KEY_CAMERA)
    Event code 224 (KEY_BRIGHTNESSDOWN)
    Event code 225 (KEY_BRIGHTNESSUP)
    Event code 226 (KEY_MEDIA)
    Event code 352 (KEY_OK)
    Event code 356 (KEY_POWER2)
    Event code 358 (KEY_INFO)
    Event code 365 (KEY_EPG)
    Event code 366 (KEY_PVR)
    Event code 368 (KEY_LANGUAGE)
    Event code 369 (KEY_TITLE)
    Event code 370 (KEY_SUBTITLE)
    Event code 372 (KEY_ZOOM)
    Event code 373 (KEY_MODE)
    Event code 377 (KEY_TV)
    Event code 385 (KEY_RADIO)
    Event code 386 (KEY_TUNER)
    Event code 387 (KEY_PLAYER)
    Event code 389 (KEY_DVD)
    Event code 392 (KEY_AUDIO)
    Event code 393 (KEY_VIDEO)
    Event code 398 (KEY_RED)
    Event code 399 (KEY_GREEN)
    Event code 400 (KEY_YELLOW)
    Event code 401 (KEY_BLUE)
    Event code 402 (KEY_CHANNELUP)
    Event code 403 (KEY_CHANNELDOWN)
    Event code 407 (KEY_NEXT)
    Event code 412 (KEY_PREVIOUS)
    Event code 425 (KEY_PRESENTATION)
    Event code 430 (KEY_MESSENGER)
    Event code 512 (KEY_NUMERIC_0)
    Event code 513 (KEY_NUMERIC_1)
    Event code 514 (KEY_NUMERIC_2)
    Event code 515 (KEY_NUMERIC_3)
    Event code 516 (KEY_NUMERIC_4)
    Event code 517 (KEY_NUMERIC_5)
    Event code 518 (KEY_NUMERIC_6)
    Event code 519 (KEY_NUMERIC_7)
    Event code 520 (KEY_NUMERIC_8)
    Event code 521 (KEY_NUMERIC_9)
    Event code 522 (KEY_NUMERIC_STAR)
    Event code 523 (KEY_NUMERIC_POUND)
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)
Key repeat handling:
  Repeat type 20 (EV_REP)
    Repeat code 0 (REP_DELAY)
      Value    500
    Repeat code 1 (REP_PERIOD)
      Value    125
Properties:
Testing ... (interrupt to exit)
Event: time 1523714338.384568, type 4 (EV_MSC), code 4 (MSC_SCAN), value 11
Event: time 1523714338.384568, -------------- SYN_REPORT ------------
Event: time 1523714339.225618, type 4 (EV_MSC), code 4 (MSC_SCAN), value 12
Event: time 1523714339.225618, -------------- SYN_REPORT ------------
Event: time 1523714339.360765, type 4 (EV_MSC), code 4 (MSC_SCAN), value 12
Event: time 1523714339.360765, -------------- SYN_REPORT ------------
Event: time 1523714339.918255, type 4 (EV_MSC), code 4 (MSC_SCAN), value 15
Event: time 1523714339.918255, -------------- SYN_REPORT ------------
Event: time 1523714340.048912, type 4 (EV_MSC), code 4 (MSC_SCAN), value 15
Event: time 1523714340.048912, -------------- SYN_REPORT ------------
</code>

Wie auf bei Möglichkeit eins muss man diese nun einem Key zuweißen oder man hat bereits eine map datei und lädt diese.

===== scan codes einem Key zuweisen =====
nun haben wir scan codes also weisen wir diese nun den Tasten zu:
Beispiel mit Taste 1.
Bei Taste 1 kommt folgende evtest Ausgabe:
<code>Event: time 1523714338.384568, type 4 (EV_MSC), code 4 (MSC_SCAN), value 11
Event: time 1523714338.384568, -------------- SYN_REPORT </code>

der scan code ist somit 11 und dieser muss nun Key_1 zugewiesen werden.

dazuerstellt man eine Datei in /etc/rc_keymaps/name_der_remote und füllt diese mit folgender Syntax:
<code>0x[SCANCODE] LEERZEICHEN [KEY]</code>
also für uns Beispiel:
<code>0x11 KEY_1</code>
Speichern fertig!

===== scan codes Key zuweisung testen =====
Nun testen wir diese zuweißung indem wir die map auch mit laden -w.

<code>ir-keytable -s rc1 -c -p NEC -w /etc/rc_keymaps/rc-test-nec
Old keytable cleared
Wrote 1 keycode(s) to driver
Protocols changed to nec
</code>

es wurde ein keycode geladen (klar wir haben nur einen hinzugefügt). Dabei habe ich bewusst das richtige Protokoll eingefügt.

ir-keytable sieht nun so aus:
<code> ir-keytable
Found /sys/class/rc/rc1/ (/dev/input/event15) with:
        Driver serial_ir, table rc-rc6-mce
        Supported protocols: lirc rc-5 rc-5-sz jvc sony nec sanyo mce_kbd rc-6 sharp xmp
        Enabled protocols: lirc nec
        Name: Serial IR type home-brew
        bus: 25, vendor/product: 0001:0001, version: 0x0100
        Repeat delay = 500 ms, repeat period = 125 ms
</code>

evtest sagt nun:
<code>evtest /dev/input/event15
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "Serial IR type home-brew"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 2 (KEY_1)
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)
Key repeat handling:
  Repeat type 20 (EV_REP)
    Repeat code 0 (REP_DELAY)
      Value    500
    Repeat code 1 (REP_PERIOD)
      Value    125
Properties:
Testing ... (interrupt to exit)
</code>
es kann schon KEY_1   
<code>Event code 2 (KEY_1)</code>

das testen wir natürlich sofort in dem wir auf der Fernbedienung Taste 1 drücken:
<code>Testing ... (interrupt to exit)
Event: time 1523715061.010631, type 4 (EV_MSC), code 4 (MSC_SCAN), value 11
Event: time 1523715061.010631, type 1 (EV_KEY), code 2 (KEY_1), value 1
Event: time 1523715061.010631, -------------- SYN_REPORT ------------
Event: time 1523715061.145434, type 4 (EV_MSC), code 4 (MSC_SCAN), value 11
Event: time 1523715061.145434, -------------- SYN_REPORT ------------
Event: time 1523715061.402358, type 1 (EV_KEY), code 2 (KEY_1), value 0
Event: time 1523715061.402358, -------------- SYN_REPORT ------------
</code>
alles wie gewollt. So geht man nun weiter vor, bis man alle Tasten angelernt hat, oder man lädt eine bereits enthaltene datei aus /etc/rc_keymaps oder /lib/udev/rc_keymaps

====== Anpassungen für den RPi ======
In der Datei /boot/config.txt muss jetzt "dtoverlay=lirc-rpi" geändert werden in:
<code>dtoverlay=gpio-ir,rc-map-name=rc-hauppauge</code>
Weiterhin ist in der /etc/rc_maps.cfg die Zeile "ir-kbd-i2c         rc-hauppauge         /etc/rc_keymaps/rc-hauppauge" wie folgt auszutauschen:
<code>gpio_ir_recv             rc-hauppauge               /etc/rc_keymaps/rc-hauppauge</code>
Nachfolgend der Inhalt für die Datei /etc/rc_keymaps/rc-hauppauge für eine Harmony mit dem Profil KLS 1.6:
<code># table hauppauge, type: RC5, KLS1.6
0xb4c KEY_SELECT
0xb0c KEY_POWER2
0xb70 KEY_TV
0xb71 KEY_VIDEO
0xb72 KEY_AUDIO
0xb73 KEY_CAMERA
0xb4b KEY_EPG
0x130 KEY_RADIO
0xb44 KEY_UP
0xb45 KEY_DOWN
0xb46 KEY_LEFT
0xb47 KEY_RIGHT
0xb48 KEY_OK
0xb4a KEY_ESC
0xb49 KEY_MENU
0xb10 KEY_VOLUMEUP
0xb11 KEY_VOLUMEDOWN
0xb22 KEY_PREVIOUS
0xb0d KEY_MUTE
0xb20 KEY_CHANNELUP
0xb21 KEY_CHANNELDOWN
0xb37 KEY_RECORD
0xb36 KEY_STOP
0xb32 KEY_REWIND
0xb35 KEY_PLAY
0xb34 KEY_FASTFORWARD
0xb30 KEY_PREVIOUSSONG
0xb33 KEY_PAUSE
0xb31 KEY_NEXTSONG
0xb01 KEY_1
0xb02 KEY_2
0xb03 KEY_3
0xb04 KEY_4
0xb05 KEY_5
0xb06 KEY_6
0xb07 KEY_7
0xb08 KEY_8
0xb09 KEY_9
0xb08 KEY_TEXT
0xb00 KEY_0
0xb78 KEY_SUBTITLE
0xb40 KEY_RED
0xb41 KEY_GREEN
0xb42 KEY_YELLOW
0xb43 KEY_BLUE
</code>

Der Inhalt stammt aus mehreren Forumsbeiträgen zu diesem Thema [[http://www.minidvblinux.de/forum/index.php/topic,9090.0.html|u.a. diesem Beitrag]]