Added some reasonable defaults to LIRC's module

[alex-ameen]

Motivation for this change

After spending a few hours trying to install LIRC I realized that many of my issues were from a lack of default settings that could get the program up and running. This will allow many users to let LIRC run out of the box.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • [x ] NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.

---

[markuskowa]

CC @ck3d

[Mic92]

To bad this was not added in the first place. I would prefer having sane default options, that can be extended by extraOptions. Do you think users would need to extend the default options in the common case?

[infinisil]

I think for now this is alright, can always add that later

[Mic92]

agreed.

[ck3d]

My configuration file looks as follows:

[lircd]
driver = ftdi
device = product=0x6015

I set none of the default values in my configuration file without any problems. Could you please specify which problems you have?

[infinisil]

@BadDecisionsAlex We should strive to keep the default config as small as possible. If @ck3d's config works then that is preferred.

[alex-ameen]

My configuration file looks as follows:

[lircd]
driver = ftdi
device = product=0x6015

I set none of the default values in my configuration file without any problems. Could you please specify which problems you have?

Sorry for the late reply, I've been swamped.
Without the default settings that I added LIRC was unable to access any of the drivers which it is normally packaged with.

[ck3d]

No problem.
To check that lircd find its drivers, call following command:

lircd -H help

In my case, everything is found. The default, ftdi and 30 more drivers.

I think the main reason is the missing device setting. Please give following config a try:

[lircd]
device = /dev/lirc0

or set it as extraArguments:
extraArguments = [ "--device=/dev/lirc0" ];

I had a look into lirc sources and it showed that the default device of the lircd default driver is /dev/lirc/0 (defined as LIRC_DRIVER_DEVICE). If /dev/lirc0 is a better default, we should think about patching lirc.

As alternative we could provide two NixOS options for driver and device.

[alex-ameen]

Sorry I did not mean to revive this. This has been sitting without interest for a while. I'm closing it.