Hi Dan,

On Tue, 19 Jan 2016 22:49:32 +0000
Dan MacDonald <[email protected]> wrote:

> Despite the fact that alsamixer sees the BPi audio device, it is (mostly)
> working and its also visible under /proc/asound/cards and
> /proc/asound/devices, dmesg says there are no ALSA devices:
> 
> [    3.987175] ALSA device list:
> [    3.990168]   No soundcards found.

Yeah, there's some kind of postprocessing hook (late_initcall_sync) in the 
kernel that prints this.
I suspect it's just called too early, before sun4i-codec was loaded. 
I'm not sure when late_initcalls are called in the first place.
Given that one can load extra kernel modules / plug extra USB soundcards 
whenever one wants, I don't think the message is that useful in the first 
place. I wouldn't worry about it.

See <https://lwn.net/Articles/141730/>, but documentation of late_initcall 
seems to be rather limited.
See also 
<http://mailman.alsa-project.org/pipermail/alsa-devel/2012-April/051311.html> 
for when this was last changed.

Regards,
   Danny

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