Re: [yocto] [meta-raspberrypi][PATCH] README: Add section on audio routing

[Andrei Gherzan]

On Thu, Oct 22, 2015 at 03:52:57PM +0100, Alex J Lennon wrote:
> See http://redmine.gherzan.com/issues/55
>
> Signed-off-by: Alex J Lennon 
> ---
>  README | 36 +++-
>  1 file changed, 31 insertions(+), 5 deletions(-)
>

Merged to maser. Thanks Alex.

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[yocto] [meta-raspberrypi][PATCH] README: Add section on audio routing

[Alex J Lennon]

See http://redmine.gherzan.com/issues/55

Signed-off-by: Alex J Lennon 
---
 README | 36 +++-
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/README b/README
index e32de3a..e16dee9 100644
--- a/README
+++ b/README
@@ -199,8 +199,34 @@ able to compile omxplayer you will need to whiteflag the 
commercial license
 adding to you local.conf:
 LICENSE_FLAGS_WHITELIST = "commercial"
 
+4. Board Configuration
+==
 
-4. Source code and mirrors
+4.A. Audio Routing
+==
+To load audio driver
+
+modprobe snd-bcm2835
+
+To test audio playback
+
+e.g. aplay test.wav
+
+Note that without HDMI connected this emits audio from the 3.5in jack connector
+as expected. However With an HDMI display connected there is no audio output 
from
+the jack connector.
+
+To force the audio routing via the 3.5in jack connector use
+
+amixer cset numid=3 1
+
+Options to amixer cset are:
+
+0=auto
+1=headphones
+2=hdmi
+
+5. Source code and mirrors
 ==
 
 Main repo:
@@ -214,10 +240,10 @@ Bitbucket mirror:
 https://bitbucket.org/agherzan/meta-raspberrypi
 
 
-5. Contributing
+6. Contributing
 ===
 
-5.A. Mailing list
+6.A. Mailing list
 =
 The main communication tool we use is a mailing list:
 yocto@yoctoproject.org
@@ -241,7 +267,7 @@ When sending patches to mailing list, please use something 
like:
 
 git send-email --to yocto@yoctoproject.org 
 
-5.B. Redmine
+6.B. Redmine
 
 In order to manage and trace the meta-raspberrypi issues, we use redmine:
 http://redmine.gherzan.ro/projects/meta-raspberrypi
@@ -255,7 +281,7 @@ for a bug:
 [Bug #13]
 
 
-6. Maintainers
+7. Maintainers
 ==
 
 Andrei Gherzan 
-- 
1.9.1

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