| From 85d90749a10b5f91741d37b75825935bf7cc4fb3 Mon Sep 17 00:00:00 2001 |
| From: Marek Vasut <marex@denx.de> |
| Date: Tue, 12 Mar 2024 03:00:37 +0100 |
| Subject: [PATCH 3/6] Make fbdev device node runtime configurable via |
| environment variable |
| |
| Test whether $LV_VIDEO_CARD environment variable is non-NULL and in |
| case it is, use it as the video card file in lv_linux_fbdev_set_file(). |
| Otherwise fall back to /dev/fb0, i.e. the current behavior. This way, |
| it is possible to test LVGL on systems with multiple fbdev devices. |
| |
| Upstream-Status: Submitted [https://github.com/lvgl/lv_port_linux_frame_buffer/pull/47] |
| Signed-off-by: Marek Vasut <marex@denx.de> |
| --- |
| main.c | 8 +++++++- |
| 1 file changed, 7 insertions(+), 1 deletion(-) |
| |
| diff --git a/main.c b/main.c |
| index 9775b9c..b64a098 100644 |
| --- a/main.c |
| +++ b/main.c |
| @@ -4,13 +4,19 @@ |
| #include <pthread.h> |
| #include <time.h> |
| |
| +static const char *lv_linux_get_video_card_node(const char *videocard_default) |
| +{ |
| + return getenv("LV_VIDEO_CARD") ? : videocard_default; |
| +} |
| + |
| int main(void) |
| { |
| + const char *videocard = lv_linux_get_video_card_node("/dev/fb0"); |
| lv_init(); |
| |
| /*Linux frame buffer device init*/ |
| lv_display_t * disp = lv_linux_fbdev_create(); |
| - lv_linux_fbdev_set_file(disp, "/dev/fb0"); |
| + lv_linux_fbdev_set_file(disp, videocard); |
| |
| /*Create a Demo*/ |
| lv_demo_widgets(); |
| -- |
| 2.43.0 |
| |