commit 73407844594bd8884dd09b1c118c8dec672cd10d
author Chinyue Chen <chinyue@chromium.org> Thu Jul 24 17:34:44 2014 +0800
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Mon Jul 28 07:18:05 2014 +0000
tree ad7805f53cdcc340c3feb493d97085d678012365
parent d6179e80167f091c23dbc6d6b430506b6ab7bd7d

alsa_utils: Case-insensitive match device control name.

Some devices use MIC for control names, so case-insensitive match is needed.

BUG=chromium:396227
TEST=Run audio_Microphone and audio_AlsaLoopback tests on link and peach_pit.

Change-Id: I54f7c4830e90538d0dc0d168278e146fa10697a6
Reviewed-on: https://chromium-review.googlesource.com/209724
Commit-Queue: Chinyue Chen <chinyue@chromium.org>
Tested-by: Chinyue Chen <chinyue@chromium.org>
Reviewed-by: Owen Lin <owenlin@chromium.org>

client/cros/audio/alsa_utils.py

diff --git a/client/cros/audio/alsa_utils.py b/client/cros/audio/alsa_utils.py
index 584c1d2..52c25b7 100644
--- a/client/cros/audio/alsa_utils.py
+++ b/client/cros/audio/alsa_utils.py
@@ -118,10 +118,12 @@
     @param scname: Simple control name to look for.
     '''
 
+    cpat = re.compile(r'\b%s\b' % cname, re.IGNORECASE)
+    scpat = re.compile(r'\b%s\b' % scname, re.IGNORECASE)
     for card_id in xrange(get_num_soundcards()):
-        for name, func in [(cname, _get_soundcard_controls),
-                           (scname, _get_soundcard_scontrols)]:
-            if any(name in c for c in func(card_id)):
+        for pat, func in [(cpat, _get_soundcard_controls),
+                          (scpat, _get_soundcard_scontrols)]:
+            if any(pat.search(c) for c in func(card_id)):
                 return card_id
     return None