@@ -2818,7 +2818,40 @@ static char *drmGetMinorNameForFD(int fd, int type)
out_close_dir:
closedir(sysdir);
#else
-#warning "Missing implementation of drmGetMinorNameForFD"
+ struct stat sbuf;
+ char buf[PATH_MAX + 1];
+ const char *dev_name;
+ unsigned int maj, min;
+ int n;
+
+ if (fstat(fd, &sbuf))
+ return NULL;
+
+ maj = major(sbuf.st_rdev);
+ min = minor(sbuf.st_rdev);
+
+ if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode))
+ return NULL;
+
+ switch (type) {
+ case DRM_NODE_PRIMARY:
+ dev_name = DRM_DEV_NAME;
+ break;
+ case DRM_NODE_CONTROL:
+ dev_name = DRM_CONTROL_DEV_NAME;
+ break;
+ case DRM_NODE_RENDER:
+ dev_name = DRM_RENDER_DEV_NAME;
+ break;
+ default:
+ return NULL;
+ };
+
+ n = snprintf(buf, sizeof(buf), dev_name, DRM_DIR_NAME, min);
+ if (n == -1 || n >= sizeof(buf))
+ return NULL;
+
+ return strdup(buf);
#endif
return NULL;
}
Implement drmGetMinorNameForFD for systems without sysfs by adapting drm_get_device_name_for_fd() from the Mesa loader. v2: use type parameter to select dev name instead of always using DRM_DEV_NAME Signed-off-by: Jonathan Gray <jsg@jsg.id.au> --- xf86drm.c | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-)