ReSpeaker 2-Mics Pi HAT Jetson Nano - Step 2 build dtbo & driver failed KBUILD

Products & Technology ReSpeaker
#1

Hello,

I have Jetson Nano with Ubuntu 20.04.1 LTS.

I am experiencing ReSpeaker 2-Mics Pi HAT installation ERROR at step KBUILD as per instructions for Jetson Nano Ubuntu 18.04.

I have verified the location of /usr/src/linux-headers-4.9.140-tegra-ubuntu18.04_aarch64 folder and it does contains folders … kernel-4.9, nvgpu, and nvidia, etc.

If anyone has any suggestions is greatly appreciated.

STEP 2. Build dtbo & driver

KBUILD=/usr/src/linux-headers-4.9.140-tegra-ubuntu18.04_aarch64/kernel-4.9 make all_jetsonnano

Building modules, stage 2.
MODPOST 1 modules
CC /root/seeed-linux-dtoverlays/modules/hcsr04/hcsr04.mod.o
LD [M] /root/seeed-linux-dtoverlays/modules/hcsr04/hcsr04.ko
LD /root/seeed-linux-dtoverlays/modules/CAN-HAT/built-in.o
CC [M] /root/seeed-linux-dtoverlays/modules/CAN-HAT/mcp25xxfd-core.o
In file included from /root/seeed-linux-dtoverlays/modules/CAN-HAT/mcp25xxfd-core.c:26:
/root/seeed-linux-dtoverlays/modules/CAN-HAT/mcp25xxfd.h:15:10: fatal error: linux/can/rx-offload.h: No such file or directory
15 | #include <linux/can/rx-offload.h>
| ^~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [scripts/Makefile.build:336: /root/seeed-linux-dtoverlays/modules/CAN-HAT/mcp25xxfd-core.o] Error 1
make[1]: *** [Makefile:1629: module/root/seeed-linux-dtoverlays/modules/CAN-HAT] Error 2
make: *** [Makefile:151: all_jetsonnano] Error 2

#2

Please do rm -rf seeed-linux-dtoverlays/modules/CAN-HAT/ , then build again

#3

That did the trick for the installation, thank you.

However, it appears the soundcard is not yet completely registered on the Jetson Nano.

When I issue command arecord -l, I do not see any listed devices.

**** List of CAPTURE Hardware Devices **** returns empty list.

When I issue command aplay -l, I see only the tegrahda device 3 from the HDMI monitor.

**** List of PLAYBACK Hardware Devices ****
card 0: tegrahda [tegra-hda], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0

Analyzing journalctl -b …
kernel: tegra-asoc: sound: ASoC: CODEC DAI wm8960-hifi not registered
kernel: tegra-asoc: sound: snd_soc_register_card failed (-517)
kernel: snd_soc_wm8960: loading out-of-tree module taints kernel.
kernel: wm8960 1-001a: Failed to issue reset
kernel: wm8960: probe of 1-001a failed with error -110

Analyzing /var/log/dmesg …
kernel: tegra-asoc: sound: ASoC: CODEC DAI wm8960-hifi not registered
kernel: tegra-asoc: sound: snd_soc_register_card failed (-517)
kernel: wm8960 1-001a: Failed to issue reset
kernel: wm8960: probe of 1-001a failed with error -110

#4

In general, the following log appears, indicating that the hardware connection is incorrect.

kernel: wm8960 1-001a: Failed to issue reset
kernel: wm8960: probe of 1-001a failed with error -110
#5

The sound card was the culprit, replaced with second sound card worked just fine.

I noticed the mic-L is accurate capturing sounds while the mic-R has lots of noises, it is not capturing sounds. In the app, set as mono and Left balance monitor.

Any ideas or suggestions?

#6

For the far field microphone, it can record more sound and also record noise.