Arnaud Ferraris 4c6625a38d src: don't crash on incomplete user-edited config file
If a user created a custom config file and we added new fields in a
newer version, `eg25-manager` will crash by assuming all config files
are complete and up-to-date.

Moreover, creating a custom config, even to change only one option,
required copying a complete default config file and then editing the
relevant field(s). This could lead to issues when upgrading, as default
values of fields unrelated to the user change could be modified and not
applied to the user config.

This patch addresses both these issues by:
* making sure at least one config file exists
* requiring only the "default" config file (the one under `/usr/share`)
  to include all the required fields
* trying to use user config for each field, falling back to the default
  config file if the field isn't present in the user config
* exiting with a meaningful error message in case the default config
  file is missing a required field or section

That way, it will be possible to have a minimal user config file
containing only the field(s) needing a different value than the default
one, falling back to the values in the default config file.

Fixes #23
2021-10-05 11:19:35 +02:00
2021-08-11 12:56:42 +02:00
2021-08-10 22:27:07 +02:00
2020-12-10 15:03:29 +01:00
2020-12-10 15:03:29 +01:00
2021-09-01 00:40:38 +02:00

eg25-manager - Quectel EG25 management daemon

eg25-manager is a daemon for managing the Quectel EG25 modem found on the Pine64 PinePhone.

It implements the following features:

  • cleanly power on/off the modem
  • configure/check essential parameters (such as the audio format) on startup
  • monitor the modem state through ModemManager
  • put the modem in low-power mode when suspending the system, and restore it back to normal behavior when resuming
  • monitor the modem state on resume and recover it if needed

Dependencies

eg25-manager requires the following development libraries:

  • libglib2.0-dev
  • libgpiod-dev
  • libmm-glib-dev

Building

eg25-manager uses meson as its build system. Building and installing eg25-manager is as simple as running the following commands:

$ meson ../eg25-build
$ ninja -C ../eg25-build
# ninja -C ../eg25-build install

Configuration

eg25-manager uses device-specific configuration files, named after the device-tree compatible field. These files are installed to /usr/share/eg25-manager. They can be copied to /etc/eg25-manager then modified, that way they won't be overwritten during an upgrade.

Running

eg25-manager is usually run as a systemd service, but can also be manually started from the command-line (requires root privileges):

# eg25manager

License

eg25-manager is licensed under the GPLv3+.

Description
Manager daemon for the Quectel EG25 mobile broadband modem
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