use-case.h: define Linked variable

We have a requirement to "hide" some hardware drivers, because
other (main) UCM configuration will refer them.

BugLink: https://github.com/alsa-project/alsa-ucm-conf/issues/30
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/include/use-case.h b/include/use-case.h
index ca51f8893dbafbc750eb901d6318adefd6442366..2363c3ed85441f88f0a6dd421258af5d2e011b4f 100644 (file)
--- a/include/use-case.h
+++ b/include/use-case.h
@@ -283,6 +283,11 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
  *                              "=Variable/Modifier/Verb"
  *
  * Recommended names for values:
+ *   - Linked
+ *      - value "True" or "1" (case insensitive)
+ *      - this is a linked UCM card
+ *      - don't use this UCM card, because the other UCM card refers devices
+ *      - valid only in the ValueDefaults section (query '=Linked')
  *   - TQ
  *      - Tone Quality
  *   - Priority