Tiny Core Base > Raspberry Pi

piCore and Wolfson Audio Card

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pkozul:
Hi there,

I posted a question on the piCorePlayer 3.20 beta forum about support for the Wolfson / Cirrus audio card.

From what I understand, the 4.9x kernel should have support built in. Is there anything special that needs to be done in piCore to enable this card?

I followed the instructions here, but couldn't see the driver loaded in piCorePlayer.

http://www.horus.com/~hias/cirrus-driver.html

Any ideas?

Thanks,
Petar

bmarkus:
Wolfsson Audio is not enabled in piCore-9.0 kernel. If you need it, please make a custom kernel.

And please do not double post the same question in the Forum.

M-H:
Hi all,

I have a picoreplayer 3.20 setup with the modules setup as described from : http://www.horus.com/~hias/cirrus-driver.html
and it leads to a working setup of the cirrus logic audio card .

However the module loading isn't fully automatic and it needs a manual action on the usb bus to complete the driver load.
To me it seems the correct parts are in the picore kernel, and the modules do work too ,since I have audio repeatedly and have not experienced instability while enjoying the card its nice output.

Who can help and teach me how the module loading works in picore, and help tweak the boot process to eliminate the need for a manual action?

For more info please see : http://forums.slimdevices.com/showthread.php?107329-Cirrus-Logic-Audio-Card-and-Wolfson-support-in-PCP-3-20
and or ask me for more details on Info I might not have provided jet.

Regards M

bmarkus:

--- Quote from: M-H on May 02, 2017, 02:53:25 PM ---
I have a picoreplayer 3.20 setup with the modules setup as described from : http://www.horus.com/~hias/cirrus-driver.html
and it leads to a working setup of the cirrus logic audio card .


--- End quote ---

For picoreplayer support please visit the picoreplayer forum. One more notice. Wolfsson Audio is not supported by piCore and it will be never supported.

M-H:
Hi Bela,
You are right, I now see the PCP project does use its own modified version of picore.
However in that kernel : linux 4.9.21-pcpCore | piCore v8.01  I do get my Cirrus Logic Audio Card working.
So now I have to figure out how I can make the set boot all including the modules , without my manual intervention.
Can you help me debug why the modules do not start automatically?
Or hint me where I can find the info to build my knowledge on this module loading loading in picore.

I recently found a post where it was mentioned a TCE was created to load the correct modules.
Is this indeed an option to load specific modules and execute commands from a TCE ?
And would this be perhaps a better route to add these specific hardware support parts to PCP ?
Regards M-H

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