Hi! This is my souces.list, but I got your message: # cat /etc/apt/sources.list deb http://ftp.fi.debian.org/debian sid main contrib non-free # I have been working with Dkms with this: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/tree/drivers/staging/vc04_services with branch staging-testing. I got both vchiq.ko and snd-bcm2835.ko compiled and installed, but I think I am in the same situation like you.
This is what Raspian give: nov 24 16:36:03 raspberrypi kernel: snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. nov 24 16:36:03 raspberrypi kernel: bcm2835_alsa bcm2835_alsa: card created with 8 channels Debian armhf with gregkh driver source give this: Nov 28 21:04:46 irena kernel: vchiq: loading out-of-tree module taints kernel. Nov 28 21:04:46 irena kernel: vchiq: vchiq_init_state: slot_zero = 61f93cc4, is_master = 0 Nov 28 21:04:46 irena systemd-modules-load[190]: Inserted module 'snd_bcm2835' lsmod and /proc/modules look okay i.e. modules have been loaded. /proc/asound is not populated with the new driver i.e. we do not have communication interface with the hardware. I just recently got the modules installed. I think like you that the dtb is the culprit. I have not studied how I can get dts compiled without the whole kernel yet, but maybe you can test the below. Here is a link: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/tree/drivers/staging/vc04_services/bcm2835-audio/TODO audio: audio { compatible = "brcm,bcm2835-audio"; brcm,pwm-channels = <8>; }; I think the 4 rows with audio should be inserted into this https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/tree/arch/arm/boot/dts/bcm283x.dtsi after vc4: gpu { compatible = "brcm,bcm2835-vc4"; }; Can you put these 4 rows in bcm283x.dtsi in Debian. Test the new dtb you got after this. Is /proc/asound populated with the new driver now? 4 °C in Aland Islands regards, Evald
