mirror of
https://git.mirrors.martin98.com/https://github.com/luc-github/ESP3D.git
synced 2025-08-03 23:50:38 +08:00
a10a7f74bf
* Remove all output flags * Masse replace name function / class to sync with ESP3D-TFT * Create ESP3DMessageManager class to handle messages creation / deletion (import functions of ESp3DClient from ESp3D-TFT) * Move to new messaging API of ESP3D-TFT * Remove empty line from remote screen dispatching * Replace \n to space and \r to nothing in remote screen dispatching * Add missing default entry for sensor device * Fix buzzer for ESP32 missing ledc initialization with latest core * Move formatBytes to esp3d_string * Add welcome message to telnet connection\ * Add display to the new messaging API * Add sticky authentication on Serial / SerialBridge /Telnet/Data web socket and BT * Log simplification * Use enum class instead of typdef enum for ESP3DAuthenticationLevel to be sure correct enum is used * (v3) Home Assistant notification support (#971) * Add notification via post request * Extend t1 size to 255 bytes * Hide Home Assistant notifications from web UI (#974) * Sync with ESP3DLib on serial_socket * Add some sanity check to avoid unnecessary message copies * Update ESP0.cpp --------- Co-authored-by: David Buezas <dbuezas@users.noreply.github.com>
47 lines
1.3 KiB
Markdown
47 lines
1.3 KiB
Markdown
```eval_rst
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.. include:: /header.rst
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:github_url: |github_link_base|/porting/log.md
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```
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# Logging
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LVGL has a built-in *Log* module to inform the user about what is happening in the library.
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## Log level
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To enable logging, set `LV_USE_LOG 1` in `lv_conf.h` and set `LV_LOG_LEVEL` to one of the following values:
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- `LV_LOG_LEVEL_TRACE` A lot of logs to give detailed information
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- `LV_LOG_LEVEL_INFO` Log important events
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- `LV_LOG_LEVEL_WARN` Log if something unwanted happened but didn't cause a problem
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- `LV_LOG_LEVEL_ERROR` Only critical issues, where the system may fail
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- `LV_LOG_user` Only user messages
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- `LV_LOG_LEVEL_NONE` Do not log anything
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The events which have a higher level than the set log level will be logged too. E.g. if you `LV_LOG_LEVEL_WARN`, errors will be also logged.
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## Printing logs
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### Logging with printf
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If your system supports `printf`, you just need to enable `LV_LOG_PRINTF` in `lv_conf.h` to send the logs with `printf`.
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### Custom log function
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If you can't use `printf` or want to use a custom function to log, you can register a "logger" callback with `lv_log_register_print_cb()`.
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For example:
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```c
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void my_log_cb(const char * buf)
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{
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serial_send(buf, strlen(buf));
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}
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...
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lv_log_register_print_cb(my_log_cb);
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```
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## Add logs
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You can also use the log module via the `LV_LOG_TRACE/INFO/WARN/ERROR/USER(text)` functions.
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