namehint: list card independent devices only once

Card-independent devices such as "null" or "pulse" should only be
added once, not once for each card.

Signed-off-by: John Lindgren <john.lindgren@tds.net>\
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/control/namehint.c b/src/control/namehint.c
index a44e81b11a140514d951ccaf42a52f1519192f5d..78572d86921ec396adc91e8417e4928272c2f133 100644 (file)
--- a/src/control/namehint.c
+++ b/src/control/namehint.c
@@ -457,10 +457,6 @@ static int add_card(struct hint_list *list, int card)
                        list->device = -1;
                        err = try_config(list, list->siface, str);
                }
-               if (err < 0) {
-                       list->card = -1;
-                       err = try_config(list, list->siface, str);
-               }
                if (err == -ENOMEM)
                        goto __error;
        }
@@ -486,6 +482,29 @@ static int get_card_name(struct hint_list *list, int card)
        return 0;
 }
 
+static int add_software_devices(struct hint_list *list)
+{
+       int err;
+       snd_config_t *conf, *n;
+       snd_config_iterator_t i, next;
+       const char *str;
+
+       err = snd_config_search(snd_config, list->siface, &conf);
+       if (err < 0)
+               return err;
+       snd_config_for_each(i, next, conf) {
+               n = snd_config_iterator_entry(i);
+               if (snd_config_get_id(n, &str) < 0)
+                       continue;
+               list->card = -1;
+               list->device = -1;
+               err = try_config(list, list->siface, str);
+               if (err == -ENOMEM)
+                       return -ENOMEM;
+       }
+       return 0;
+}
+
 /**
  * \brief Return string list with device name hints.
  * \param card Card number or -1 (means all cards)
@@ -549,6 +568,7 @@ int snd_device_name_hint(int card, const char *iface, void ***hints)
                if (err >= 0)
                        err = add_card(&list, card);
        } else {
+               add_software_devices(&list);
                err = snd_card_next(&card);
                if (err < 0)
                        goto __error;