commit 10c9ed0c5e478faa25ef49c8aaed8c22625c4302
author David Li <dvdli@google.com> Wed Jan 19 02:37:27 2022 +0000
committer David Li <dvdli@google.com> Wed Jan 19 02:37:27 2022 +0000
tree 568bbea3e66c7b9ce35469177d16d48f84d75a13
parent f84a88a2e4037925cde5a5348986de2e33ca1b1c

add ioctl to read IEC958 data

Bug: 209551748
Bug: 209364383
Test: mm libtinyalsa
Change-Id: Ib42268b5a125aea973c17bea55bf9e20f817065d

mixer.c

diff --git a/mixer.c b/mixer.c
index 7b8540a..fd0ad8d 100644
--- a/mixer.c
+++ b/mixer.c
@@ -619,6 +619,9 @@
         }
 
     case SNDRV_CTL_ELEM_TYPE_IEC958:
+        ret = grp->ops->ioctl(grp->data, SNDRV_CTL_IOCTL_ELEM_READ, &ev);
+        if (ret < 0)
+            return ret;
         size = sizeof(ev.value.iec958);
         source = &ev.value.iec958;
         break;