v01d commented on a change in pull request #334:
URL:
https://github.com/apache/incubator-nuttx-apps/pull/334#discussion_r455289170
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File path: graphics/lvgl/README.md
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@@ -0,0 +1,21 @@
+# Usage
+
+Import with `#include <lvgl/lvgl.h>`.
+
+Upstream example is present at `examples/lvgldemo`.
+
+LVGL can be used with framebuffer device. To find example boards with this
+preconfigured, search for `CONFIG_GRAPHICS_LVGL=y` in `defconfig` files.
+All of them have also `CONFIG_VIDEO_FB=y` present.
+
+As a second option, LVGL can talk to a display driver and explicitly draw line
by line.
+For this case, there is no preconfigured board present. Go to _Porting_ section
+of upstream documentation for more hints.
Review comment:
No, this is not standard, I use it on my own code. I could propose it in
a pull-request. I never did since I extended the LCD interface to accept
drawing multiple rows at once (also due to overhead of individual putrun()),
but I could leave that out. I would not add something to the README if it is
not part of NuttX codebase itself.
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