piCorePlayer 7.0.1 + CM4 + Mini I/O Board not Used USB-DAC

[tx2toda]

Hello!

I bought a CM4 & Mini I / O Board from AliExpress in China.

I2S-DAC (Inno DAC HAT) worked normally.
However, when I connect a USB-DAC (SMSL M300), it is not recognized at all.

Is there a way to make piCorePlayer 7.0.1 recognize the USB-DAC?

[paul-]

CM4 in theory is supported, but I don't have anything to test.

What shows up in dmesg?

[tx2toda]

CM4 in theory is supported, but I don't have anything to test.

What shows up in dmesg?

sorry.
I'm not used to using the forums here yet.

dmesg is README.txt

[Paul Webster]

dmesg is a Linux command
You can see the output from it via the Diagnostics page in pCP.

Do you also have a regular Raspberry Pi ?
If yes then you could try the USB DAC there as well since that would help to eliminate or confirm the CM4 as the issue for pCP.

You could also try with Raspberry Pi OS.

[tx2toda]

dmesg is a Linux command
You can see the output from it via the Diagnostics page in pCP.

Do you also have a regular Raspberry Pi ?
If yes then you could try the USB DAC there as well since that would help to eliminate or confirm the CM4 as the issue for pCP.

You could also try with Raspberry Pi OS.

Hi,

RaspBerry Pi 3B+ & SMSL M300MKII USB-DAC dmesg

M300-dmesg.txt

[paul-]

Couple thoughts. First is the board that is reported. Does not appear to be a CM4. Also you are running the 64 bit version of pCP. I would try the 32bit version.

[    0.000000] Linux version 5.4.83-pcpCore-v8 (pCP@SoundStation) (gcc version 7.4.1 20181213 (crosstool-NG 1.24.0.6-afaf7b9)) #1 SMP PREEMPT Fri Dec 18 23:15:06 EST 2020
[    0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3

Second, the sound card is detected, but there is an error message......again, try the 32bit version.

[    3.107715] usb 1-1.1.2: new high-speed USB device number 4 using dwc_otg
[    3.208337] usb 1-1.1.2: New USB device found, idVendor=152a, idProduct=85dd, bcdDevice= 6.f2
[    3.208345] usb 1-1.1.2: New USB device strings: Mfr=1, Product=3, SerialNumber=0
[    3.208353] usb 1-1.1.2: Product: SMSL M300
[    3.208359] usb 1-1.1.2: Manufacturer: SMSL

[   10.406906] usb 1-1.1.2: 1:3 : unsupported format bits 0x100000000
[   10.518300] usbcore: registered new interface driver snd-usb-audio

[tx2toda]

Couple thoughts. First is the board that is reported. Does not appear to be a CM4. Also you are running the 64 bit version of pCP. I would try the 32bit version.

[    0.000000] Linux version 5.4.83-pcpCore-v8 (pCP@SoundStation) (gcc version 7.4.1 20181213 (crosstool-NG 1.24.0.6-afaf7b9)) #1 SMP PREEMPT Fri Dec 18 23:15:06 EST 2020
[    0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3

Second, the sound card is detected, but there is an error message......again, try the 32bit version.

[    3.107715] usb 1-1.1.2: new high-speed USB device number 4 using dwc_otg
[    3.208337] usb 1-1.1.2: New USB device found, idVendor=152a, idProduct=85dd, bcdDevice= 6.f2
[    3.208345] usb 1-1.1.2: New USB device strings: Mfr=1, Product=3, SerialNumber=0
[    3.208353] usb 1-1.1.2: Product: SMSL M300
[    3.208359] usb 1-1.1.2: Manufacturer: SMSL

[   10.406906] usb 1-1.1.2: 1:3 : unsupported format bits 0x100000000
[   10.518300] usbcore: registered new interface driver snd-usb-audio

Hi,

"Dtoverlay = dwc2, dr_mode = host" in config.txt of Raspberry Pi OS Lite.
When I added it and started it, the USB-DAC (earstudio HUD100) was recognized.

USB-DAC could not be recognized even with piCorePlayer 7.0.1 32bit.

[paul-]

I guess that makes sense, since the default dwc driver is really modified for the rpi onboard usb chips. dwc2 is the driver commonly used in mainline.

[tx2toda]

I guess that makes sense, since the default dwc driver is really modified for the rpi onboard usb chips. dwc2 is the driver commonly used in mainline.

I tried writing "Dtoverlay = dwc2, dr_mode = host" in config.txt of piCorePlayer 7, but it didn't work.
I wonder if the description method is different from piCore.

[paul-]

Procedure is the same. Dmesg should show you what is going on.