[SOLVED] Suptronics x400 device not working

[TheOldPresbyope]

moOde simply sets dtoverlay=iqaudio-dacplus for that particular device which is what the manufacturer specifies as the i2s driver to be used. There is no other configuration except to verify in MPD config that Audio device = I2S audio device, then click APPLY.

...

Maybe there has been some change in the dacplus i2s driver in latest Linux kernel ?? I would have no way of knowing...

-Tim

I don't have a DAC which uses this driver but searching the kernel module for build info suggests no change between moOde r4.2 and r4.3.

Here's a block of output from the strings command on moOde r4.2

Code:

pi@moode42:~ $ strings /lib/modules/4.14.70-v7+/kernel/sound/soc/bcm/snd-soc-iqaudio-dac.ko
...
license=GPL v2
description=ASoC Driver for IQAudio DAC
author=Florian Meier <florian.meier@koalo.de>
srcversion=9C73F76AB1CF8E6BF51BC4D
alias=of:N*T*Ciqaudio,iqaudio-dacC*
alias=of:N*T*Ciqaudio,iqaudio-dac
depends=snd-soc-core
intree=Y
name=snd_soc_iqaudio_dac
vermagic=4.14.70-v7+ SMP mod_unload modversions ARMv7 p2v8
...

while on moOde 4.3:

Code:

pi@moode43:~ $ strings /lib/modules/4.14.72-v7+/kernel/sound/soc/bcm/snd-soc-iqaudio-dac.ko
...
license=GPL v2
description=ASoC Driver for IQAudio DAC
author=Florian Meier <florian.meier@koalo.de>
srcversion=9C73F76AB1CF8E6BF51BC4D
alias=of:N*T*Ciqaudio,iqaudio-dacC*
alias=of:N*T*Ciqaudio,iqaudio-dac
depends=snd-soc-core
intree=Y
name=snd_soc_iqaudio_dac
vermagic=4.14.72-v7+ SMP mod_unload modversions ARMv7 p2v8
...

Kernel has changed but FWIW source version ids are identical. I can't find this id as a commit to the Raspbian source code tree so don't know what to do with it.

Regards,
Kent