ucm: add ${CardDriver} substitution

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/ucm/ucm_subs.c b/src/ucm/ucm_subs.c
index 22dc24e9a48f5c8c398727cf6106518fe560cfa8..00afa9e3de0eb8f2aa8a6c405ccf3424098bc068 100644 (file)
--- a/src/ucm/ucm_subs.c
+++ b/src/ucm/ucm_subs.c
@@ -45,6 +45,16 @@ static char *rval_card_id(snd_use_case_mgr_t *uc_mgr)
        return strdup(snd_ctl_card_info_get_id(ctl_list->ctl_info));
 }
 
+static char *rval_card_driver(snd_use_case_mgr_t *uc_mgr)
+{
+       struct ctl_list *ctl_list;
+
+       ctl_list = uc_mgr_get_one_ctl(uc_mgr);
+       if (ctl_list == NULL)
+               return NULL;
+       return strdup(snd_ctl_card_info_get_driver(ctl_list->ctl_info));
+}
+
 static char *rval_card_name(snd_use_case_mgr_t *uc_mgr)
 {
        struct ctl_list *ctl_list;
@@ -181,6 +191,7 @@ int uc_mgr_get_substituted_value(snd_use_case_mgr_t *uc_mgr,
                if (*value == '$' && *(value+1) == '{') {
                        MATCH_VARIABLE(value, "${ConfName}", rval_conf_name);
                        MATCH_VARIABLE(value, "${CardId}", rval_card_id);
+                       MATCH_VARIABLE(value, "${CardDriver}", rval_card_driver);
                        MATCH_VARIABLE(value, "${CardName}", rval_card_name);
                        MATCH_VARIABLE(value, "${CardLongName}", rval_card_longname);
                        MATCH_VARIABLE(value, "${CardComponents}", rval_card_components);