lupyuen opened a new pull request, #1494:
URL: https://github.com/apache/nuttx-apps/pull/1494
## Summary
The LVGL Example App `lvgldemo` currently requires 1 argument: the name of
the demo to show.
```bash
lvgldemo widgets
```
In this PR, we propose to make the argument optional if there is only one
demo configured. This will enable PINE64 PinePhone to boot straight into
`lvgldemo` and auto-start the LVGL App, without entering any `nsh` commands.
### Modified Files
`examples/lvgldemo/lvgldemo.c`: If no arguments are specified and only 1
demo exists, select the demo
## Impact
With this PR, `lvgldemo` will no longer require an argument if there is only
one demo configured. So this command:
```bash
lvgldemo
```
Is equivalent to `lvgldemo widgets` if there is only one demo `widgets`
configured.
If there is more than one demo configured, or if an argument is provided,
`lvgldemo` will work the same way as before.
## Testing
We successfully tested `lvgldemo` with a Single Configured Demo:
```bash
lvgldemo
[Shows Widgets Demo]
lvgldemo widgets
[Shows Widgets Demo]
```
[(See the Test
Log)](https://gist.github.com/lupyuen/b01b325d91c9ad72a0ec88e057e982a8)
And we tested `lvgldemo` with Multiple Configured Demos:
```bash
lvgldemo
[Shows List of Configured Demos and exits]
lvgldemo music
[Shows Music Demo]
lvgldemo stress
[Shows Stress Demo]
```
[(See the Test
Log)](https://gist.github.com/lupyuen/b96ed96db295334db1cfabf461efad83)
Also we verified that PinePhone boots successfully to the `lvgldemo widgets`
demo automatically, without entering any `nsh` commands. We configured the
PinePhone build as follows:
```bash
tools/configure.sh pinephone:lvgl
make menuconfig
```
1. RTOS Features > Tasks and Scheduling
- Set "Application entry point" to `lvgldemo_main`
(INIT_ENTRYPOINT)
- Set "Application entry name" to `lvgldemo_main`
(INIT_ENTRYNAME)
2. Application Configuration > NSH Library
- Disable "Have architecture-specific initialization"
(NSH_ARCHINIT)
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