[alsa-devel] [PATCH] asoc: add dummy codec

Stas Sergeev stsp at list.ru
Thu Apr 11 15:57:13 CEST 2013

11.04.2013 14:41, Lars-Peter Clausen пишет:
> On 04/11/2013 12:36 PM, Stas Sergeev wrote:
>> Hi.
>> The attached patch adds a dummy codec for the
>> asoc subsystem.
>> I use it with the driver that programs the soc to drive
>> I2S from an internal PLLs, and the audio then goes to
>> HDMI, so no external codec is used.
>> I've found spdif_transciever.c, which exactly is such a
>> dummy driver, but it is bound to the particular plat
>> device, so I made the device name a config option, and
>> if not set, the plat device is created with the default
>> name.
>> It may be possible to avoid the usage of the codec driver
>> at all, but I haven't succeeded with this, and the existance
>> of spdif_transciever.c suggests there is no such way.
>> Thoughts?
>> Signed-off-by: Stas Sergeev <stsp at users.sourceforge.net>
> Hi,
> There is already a dummy codec driver.
> Please take a look at sound/soc/soc-utils.c
Hi, I've seen that, but how can I get use of it?
It doesn't do snd_soc_register_codec(), and in debugfs
I can do 'cat asoc/codecs' and it shows only 'dummy-codec',
which is installed by my driver.
So could you please clarify?

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