<enhancement> reSpeaker 2-Mics Pi HAT v2.0 Drivers

[Gentoshi]

I built out these instructions for installing Respeaker PiHat v2 a while ago. Maybe they can be used to build out a V2 version of the PiHAT hardware?

https://joelchristian.com/cat/custom-home-assistant-smart-speaker#respeaker-driver-build-an

sudo apt install flex bison libssl-dev bc build-essential libncurses5-dev libncursesw5-dev linux-headers-$(uname -r) -y

git clone --depth=1 --branch rpi-6.6.y https://github.com/raspberrypi/linux.git

mkdir ~/tlv320aic3x_i2c_driver
cd ~/tlv320aic3x_i2c_driver

cp ~/linux/sound/soc/codecs/tlv320aic3x.c .
cp ~/linux/sound/soc/codecs/tlv320aic3x.h .
cp ~/linux/sound/soc/codecs/tlv320aic3x-i2c.c .

nano Makefile

obj-m += snd-soc-tlv320aic3x-i2c.o
snd-soc-tlv320aic3x-i2c-objs := tlv320aic3x.o tlv320aic3x-i2c.o

KDIR := /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)

all:
          $(MAKE) -C $(KDIR) M=$(PWD) modules

clean:
        $(MAKE) -C $(KDIR) M=$(PWD) clean

install:
        sudo cp snd-soc-tlv320aic3x-i2c.ko /lib/modules/$(shell uname -r)/kernel/sound/soc/codecs/
        sudo depmod -a

make
sudo make install
sudo modprobe snd-soc-tlv320aic3x-i2c

cd ..
curl https://raw.githubusercontent.com/Seeed-Studio/seeed-linux-dtoverlays/refs/heads/master/overlays/rpi/respeaker-2mic-v2_0-overlay.dts -o respeaker-2mic-v2_0-overlay.dts
dtc -I dts respeaker-2mic-v2_0-overlay.dts -o respeaker-2mic-v2_0-overlay.dtbo
sudo dtoverlay respeaker-2mic-v2_0-overlay.dtbo
sudo cp respeaker-2mic-v2_0-overlay.dtbo /boot/firmware/overlays

sudo nano /boot/firmware/config.txt

Paste the following under the all section
dtoverlay=respeaker-2mic-v2_0-overlay

Enable I2C and SPI via Raspi-config

sudo reboot

[florian-asche]

If i am informed correctly the v2 with triexie doesnt even need drivers because they are now included in the kernel. I think just the dtbo files are needed. But need to look into that. But first i need that v2 board...

[ilektron]

I just picked up a couple of these to use with some Pi Zeros. I could probably test out and confirm that you just need the overlays over the weekend.

[ilektron]

I just installed a fresh Pi OS with on trixie, with the 6.12.62+rpt-rpi-v8 kernel on a Pi Zero 2 W, with the v2 hat installed, and just building the overlays, installing them, and then enabling them in /boot/firmware/config.txt works just fine. No need for for the linux headers or compiling the driver.

To be explicit,

#!/bin/bash

curl https://raw.githubusercontent.com/Seeed-Studio/seeed-linux-dtoverlays/refs/heads/master/overlays/rpi/respeaker-2mic-v2_0-overlay.dts -o respeaker-2mic-v2_0-overlay.dts
dtc -I dts respeaker-2mic-v2_0-overlay.dts -o respeaker-2mic-v2_0-overlay.dtbo
sudo dtoverlay respeaker-2mic-v2_0-overlay.dtbo
sudo cp respeaker-2mic-v2_0-overlay.dtbo /boot/firmware/overlays

then

/boot/firmware/config.txt

[all]
dtoverlay=respeaker-2mic-v2_0-overlay

Reboot, then run the OHF/linux-voice-assistant docker compose image and I'm off and running.

I'd love to learn pi-gen and figure out how to put this in because I'd also love to help with the LEDs and user button integrations for home assistant for both the hat version and the respeaker-lite over USB, which I can't find any documentation for to be able to control the LED over USB.