Allow to configure outputs by their identifier

1 files changed, 8 insertions, 0 deletions

diff --git a/sway/config/output.c b/sway/config/output.c
index f336c949..e798a20e 100644
--- a/sway/config/output.c
+++ b/sway/config/output.c
@@ -1,4 +1,5 @@
 #define _XOPEN_SOURCE 700
+#include <stdbool.h>
 #include <string.h>
 #include <assert.h>
 #include <wlr/types/wlr_output.h>
@@ -14,6 +15,13 @@ int output_name_cmp(const void *item, const void *data) {
         return strcmp(output->name, name);
 }
 
+void output_get_identifier(char *identifier, size_t len,
+                struct sway_output *output) {
+        struct wlr_output *wlr_output = output->wlr_output;
+        snprintf(identifier, len, "%s %s %s", wlr_output->make, wlr_output->model,
+                wlr_output->serial);
+}
+
 struct output_config *new_output_config(const char *name) {
         struct output_config *oc = calloc(1, sizeof(struct output_config));
         if (oc == NULL) {