feat(drm): automatically find drm device path if env var is not set

AndreCostaaa · AndreCostaaa · commit 07fea81bca47 · 2025-11-20T08:31:45.000+01:00
diff --git a/src/lib/display_backends/drm.c b/src/lib/display_backends/drm.c
@@ -86,7 +86,7 @@ int backend_init_drm(backend_t *backend)
  */
 static lv_display_t *init_drm(void)
 {
-    const char *device = getenv_default("LV_LINUX_DRM_CARD", "/dev/dri/card0");
+    const char *device = getenv_default("LV_LINUX_DRM_CARD", lv_linux_drm_find_device_path());
     lv_display_t * disp = lv_linux_drm_create();
 
     if (disp == NULL) {

Original file line number	Diff line number	Diff line change
`@@ -86,7 +86,7 @@ int backend_init_drm(backend_t *backend)`
`86`	`86`	`*/`
`87`	`87`	`static lv_display_t *init_drm(void)`
`88`	`88`	`{`
`89`		`- const char *device = getenv_default("LV_LINUX_DRM_CARD", "/dev/dri/card0");`
	`89`	`+ const char *device = getenv_default("LV_LINUX_DRM_CARD", lv_linux_drm_find_device_path());`
`90`	`90`	`lv_display_t * disp = lv_linux_drm_create();`
`91`	`91`
`92`	`92`	`if (disp == NULL) {`