Fixed bug 4624 - KMS/DRM fails on FreeBSD because /dev/dri/card* nodes are symlinks

Jan Martin Mikkelsen

Patch to scan /dev/dri based on names rather than file type

Loading KMS/DRM on FreeBSD fails because the "available" code in the driver checks for character device nodes under /dev/dri and the /dev/dri/card* files are symlinks rather than device nodes nodes on FreeBSD. The symlink points to /dev/drm/0.

The attached patch counts /dev/dri/card* entries rather than directory entries which are character devices.

src/video/kmsdrm/SDL_kmsdrmvideo.c

@@ -101,7 +101,7 @@ static int get_dricount(void)
     folder = opendir(KMSDRM_DRI_PATH);
     if (folder) {
         while ((res = readdir(folder))) {
-            if (res->d_type == DT_CHR) {
+            if (res->d_namlen > 4 && strncmp(res->d_name, "card", 4)) {
                 devcount++;
             }
         }