How to use I2S

[How to use I2S]

@tooz

Since I am a Linux beginner, I don't understand how overlays work etc.
I would like you to tell me in detail 
how to set it to recognize the HiFiBerry DAC, for example. 

I tried various things such as editing the "/boot/config.txt" file with reference to the Raspberry Pi article, 
but "rkhdmidpsound" is displayed even if I run the "aplay -l" command.

Also, in my environment, there is only hifiberry-dacplus in /boot/overlays, and other overlays such as hifiberry-dac cannot be found. 
Does this require installation?

[Can't work USB WebCamera]

I have some USB Web Camera (UVC), but all of them doesn't work.
Do I need to make any settings to be able to use the webcam?

 

[ Testing environment ]

Tinker board 2S

(1)Debian10 v2.0.14

(2)Debian v2.1.6

I tried both OS as clean installed environment.

 

(a)Pre-installed "Cheese" Application

(b)Pre-installed "Qt V4L2 test Utility" Application

 

[Result]

(1) and (2) are same result.

 

Normaly, /dev/video0 ~ video4 are appears.

Then pluged the USB Web Camera, /dev/video5 and /dev/video6 are added.

$ v4l2-ctl -d /dev/video5 -all

video5 seems video device, and video6 seems other device.

 

(a) : Shows "There wan an error playing video from the webcam" Error. 

   Probably auto selected video0 as a default device.    

    There should be a preferences menu in the Cheese app and can select video5, but the settings menu can't be displayed (probably a bug)

 

(b):File > Open Device > device5, then crashed application and desktop...

 

 

 

 

 

[How to use I2S]

[Debian10 V.2.0.3]

Hello,

I want to connect to Audio DAC(Texas Instruments PCM5102A) via I2S, and want to play sound.

Normally, "aplay -l" command shows only HDMI audio device.
I edited config.txt -> intf:i2s0=on
but this didn't make any sense.

Next, I found
/boot/overlays/hifiberry-dacplus-overlay.* files, 

I added config.txt -> overlay=hifiberry-dacplus-overlay
but "aplay -l" command said "no soundcards found...".

Please tell me what to do.

Thanks!