[mythtv-users] IR control via evdev

[Stephen Worthington]

On Wed, 8 Aug 2018 11:19:39 -0400, you wrote:

>I'm building a new box with Ubuntu 18.04 and trying to get the remote 
>working, but ran into a snag.  I'm following the instructions here:
>
>https://www.mythtv.org/wiki/User_Manual:IR_control_via_evdev
>
>This worked:
>
>don at andy:~$ sudo ir-keytable -t
>Testing events. Please, press CTRL-C to abort.
>182.735877: event type EV_MSC(0x04): scancode = 0x800f0401
>182.735877: event type EV_KEY(0x01) key_down: KEY_NUMERIC_1(0x0201)
>182.735877: event type EV_SYN(0x00).
>182.869726: event type EV_MSC(0x04): scancode = 0x800f0401
>182.869726: event type EV_SYN(0x00).
>183.132071: event type EV_KEY(0x01) key_up: KEY_NUMERIC_1(0x0201)
>183.132071: event type EV_SYN(0x00).
>
>, but this did not:
>
>don at andy:~$ sudo ir-keytable -t -d /dev/event/input3
>/dev/event/input3: No such file or directory
>
>don at andy:~$ sudo ir-keytable -t -d /dev/event/input4
>/dev/event/input4: No such file or directory
>
>My box has /dev/input/event*, but does not have /dev/event.  Trying the 
>next command:
>
>don at andy:~$ sudo ir-keytable
>Found /sys/class/rc/rc0/ (/dev/input/event10) with:
>         Name: Media Center Ed. eHome Infrared Remote Transceiver 
>(0471:0815)
>         Driver: mceusb, table: rc-rc6-mce
>         lirc device: /dev/lirc0
>         Supported protocols: lirc rc-5 rc-5-sz jvc sony nec sanyo 
>mce_kbd rc-6 sharp xmp
>         Enabled protocols: lirc rc-6
>         bus: 3, vendor/product: 0471:0815, version: 0x0000
>         Repeat delay = 500 ms, repeat period = 125 ms
>
>I have /dev/input/event10, so tried:
>
>don at andy:~$ sudo ir-keytable -t -d /dev/input/event10
>Can't open lirc device: No such file or directory
>
>, so purged lirc, and tried it again; got the same results:
>
>don at andy:~$ sudo apt-get remove *lirc* --purge
>don at andy:~$ sudo ir-keytable -t -d /dev/input/event10
>Can't open lirc device: No such file or directory
>
>
>Any suggestions?
>
>Don

I do not see any problem there.  You have ir-keytable working seeing
an MCE remote on rc0 (/sys/class/rc/rc0/), and the setup shown seems
fine.  Just use that, and use "-s rc0" if you really need to select
the remote.  But it is defaulting to the correct device without any -s
or -d options.  I think you will find that "ls -al /sys/class/rc" will
show only one remote.

And be aware that lirc in 18.04 is a much later version (0.10.0) than
in 16.04 (0.9.0).  It uses different config files and programs
(lirc-setup and irdb-get).  So old configuration guides for lirc will
likely lead you astray.  See:

http://www.lirc.org/html/configuration-guide.html