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ucm: add the run-time variable substitution

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Those two variables are supported:

  ${ConfName}      - configuration file name
  ${CardId}        - card identification string (like PCH)
  ${CardName}      - card name (driver)
  ${CardLongName}  - card long name (driver)
  ${env:ENV_NAME}  - returns the environment variable ENV_NAME

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-11-04 16:18:07 +01:00
parent 40aef87f1e
commit 0dd89f3892
3 changed files with 179 additions and 22 deletions
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2
src/ucm/parser.c
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@ -1464,6 +1464,7 @@ static int get_card_long_name(snd_use_case_mgr_t *mgr)
_long_name = snd_ctl_card_info_get_longname(info);
if (!strcmp(card_name, _name) ||
!strcmp(card_name, _long_name)) {
snd_strlcpy(mgr->card_short_name, _name, sizeof(mgr->card_short_name));
snd_strlcpy(mgr->card_long_name, _long_name, sizeof(mgr->card_long_name));
return 0;
}
@ -1495,6 +1496,7 @@ static int get_by_card(snd_use_case_mgr_t *mgr, const char *ctl_name)
_name = snd_ctl_card_info_get_name(info);
_long_name = snd_ctl_card_info_get_longname(info);
snd_strlcpy(mgr->card_short_name, _name, sizeof(mgr->card_short_name));
snd_strlcpy(mgr->card_long_name, _long_name, sizeof(mgr->card_long_name));
snd_strlcpy(mgr->conf_file_name, _name, sizeof(mgr->conf_file_name));