[LAD] Jack not starting MOD-Duos Audio Interface Driver

Rafael Guayer rafael at portalmod.com.br
Thu Oct 23 11:50:55 UTC 2014

I solved this by adding the format S24_3LE to:

aSoC Codec Driver snd_soc_dai_driver->formats
aSoC Plataform Driver (DMA) snd_pcm_hardware->formats
aSoC Plataform Driver (I2S) snd_soc_dai_driver->capture->formats and

The codec CS4245 only works with 32 bit word size, so i am converting from
S24_3LE in the I2S plataform driver by setting the word size 32bits.


2014-10-23 0:20 GMT-02:00 Paul Davis <paul at linuxaudiosystems.com>:

> On Wed, Oct 22, 2014 at 9:21 PM, Len Ovens <len at ovenwerks.net> wrote:
>> On Wed, 22 Oct 2014, Rafael Guayer wrote:
>>  I am working with S24_LE on CODEC Cirrus Logic CS4245. Does S24_LE works
>>> with jack?
>> Just a quick guess on my part... may need to be presented as 32 bit. I
>> have also seen S24_3LE in some places, but any jack startups I have seen
>> are either 16 or 32 bit. 24bit samples are stored as 32 bits in any case
>> with the lowest 8 as zero. See:
> JACK tries 32, 24 and 16 bit in that order, with endianess determined by
> the platform, unless told on the command line to use only 16 bit.
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Rafael Guayer
www.portalmod.com <http://www.portalmod.com.br>
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