OpenVoiceOS/buildroot-external/board/raspberrypi/rootfs-overlay/etc/modprobe.d/alsa-base.conf

options snd_usb_audio index=0
options snd_soc_simple_card index=0
options snd_soc_wm8960 index=0
options snd_soc_ac108 index=0
options snd_usb_audio ignore_ctl_error=1
options snd_bcm2835 index=1

options snd slots=snd_usb_audio,snd_soc_simple_card,snd_soc_wm8960,snd_soc_ac108snd_bcm2835
MycroftOS: Let's make snd_bcm2835 play nice with USB cards - Make the USB card default before bcm2835 if present. 2020-01-06 16:36:49 +01:00			`options snd_usb_audio index=0`
MycroftOS: Change the kernel module loading order for respeaker as well. 2020-08-30 10:38:11 +02:00			`options snd_soc_simple_card index=0`
			`options snd_soc_wm8960 index=0`
			`options snd_soc_ac108 index=0`
MycroftOS: Make alsa a bit more forgiving for usb cards. 2020-04-06 11:31:06 +02:00			`options snd_usb_audio ignore_ctl_error=1`
MycroftOS: Let's make snd_bcm2835 play nice with USB cards - Make the USB card default before bcm2835 if present. 2020-01-06 16:36:49 +01:00			`options snd_bcm2835 index=1`
MycroftOS: Change the kernel module loading order for respeaker as well. 2020-08-30 10:38:11 +02:00
			`options snd slots=snd_usb_audio,snd_soc_simple_card,snd_soc_wm8960,snd_soc_ac108snd_bcm2835`