Re: [Alsa-user] snd_hdsp missing on raspberrypi pi 5

[David K. <da...@ke...>]

But what I am really wondering is how to set buffers in alsa config and 
how to have access to the "disconnect" option and leave the unit in 
standalone mode. Any ideas?

Le 23.05.24 à 02:04, David Kessler a écrit :
>
> Hey there!
>
> Ok so interface is composed of 52pi PCIe slot and a PCIe to PCI riser. 
> When connected a digiface the unit is powered from the PI. For now 
> there is no converters plugged-in.
>
> With a multiface I've run into power supply issues even with external 
> supply. Tried both powering the unit itself or through the PCI riser.
>
> Steps to reproduce on RPI5 bookworm:
>
>  1. Compile kernel with PCI soundcard support.
>  2. install alsa-utils, alsa-tools, alsa-tools-gui and
>     alsa-firmware-loaders
>  3. Download and copy firmwares from hdsploader to
>     /lib/firmware/hdsploader/ (create directory). Not sure why they
>     were missing. Maybe optional to update the firmware.
>  4. add dtparam=pciex1 dtparam=pciex1_gen=2 (maybe not necessary) and
>     dtoverlay=pcie-32bit-dma to /boot/firmware
>     /config.txt
>  5. Check output of hdsploader and let me know if something's missing!
>  6. Have fun!
>
> https://www.ebay.ch/itm/325621887809?mkevt=1&mkpid=0&emsid=e11050.m43.l1123&mkcid=7&ch=osgood&euid=834d2908877649ae99fbc773787109b5&bu=45040954043&osub=-1%7E1&crd=20231029100454&segname=11050
>
> https://52pi.com/products/p02-pcie-slot-for-rpi5
>
> https://www.alsa-project.org/wiki/Matrix:Module-hdsp
>
> https://www.kernelconfig.io/config_snd_hdsp
>
> Le 20.05.24 à 14:54, Peter P. a écrit :
>> * David Kessler<da...@ke...>  [2024-05-20 12:56]:
>>> Ok everything works well after adding the right firmware to
>>> /lib/firmware/hdsploader! I'am very happy and thank's to the folks pointing
>>> me in the right direction!
>>>
>>> Cheers!
>> Oh by the way, what type and model of PCI extender are you using for the Pi5?
>>
>>
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