Reading other posts on this forum it seems I'm not the only one with driver issues.
Current default stable kernel that Raspian runs is 5.4.51-v7l+ (It's important to support/run current kernel w/ all security applied).
What's the most recent kernel version I can hope to have stability with your drivers?
If it's not the current version when will you be updating your kernel drivers to support the current/stable/secure version that Raspian runs?
Thank you.
There are no known iusses in the latest Raspberry Pi kernels. Please do not start again to tell us how incompetent we are as you did in your last posting.I already recommended an action to you that you just didn't want to do. There is nothing else I can do here.
This is well documented. For example:
The senf-configuring EEPROM design of the HiFiBerry boards is pretty cool. Unfortunately, As I understand it, it's not possible for this mechanism to simultaneously and seamlessly support older and newer kernels. Likely the change in direction in the Linux kernel was not easy to anticipate.
For DIY projects like this, you have to be willing to do a little leg-work to get the most out of them. It's part of the fun…or should be. I, for one, am grateful to the HiFiBerry team for the work they have put into these fine and affordable products. Looking forward to getting this latest addition to my HiFiBerry collection up and running this evening!
Update: Yesterday, I booted a Raspberry Pi 3 Model B fitted with the new DAC2 HD HAT with DietPi_RPi-ARMv6-Buster.img from June 14th. After updates, it's running Linux v5.4.51-v7+. I was expecting to have to add "force_eeprom_read=0" to "/boot/config.txt" as we have discussed, but much to my surprise, everything just worked.
root@dac2hd:~# uname -r
5.4.51-v7+
root@dac2hd:~# grep -Ee '(eeprom|dtoverlay)' /boot/config.txt
dtoverlay=disable-wifi
dtoverlay=hifiberry-dacplushd
root@dac2hd:~# cat /etc/asound.conf
pcm.!default {
type hw
card 0
device 0
}
ctl.!default {
type hw
card 0
}
root@dac2hd:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplushd], device 0: HiFiBerry DAC+ HD HiFi pcm179x-hifi-0 [HiFiBerry DAC+ HD HiFi pcm179x-hifi-0]
Subdevices: 0/1
Subdevice #0: subdevice #0
The DAC2 HD has been completely stable and self-configuring with the drivers in this kernel, so you have nothing to worry about. :)
I don't believe there is really a "driver" in the kernel for the hifiberry products. The Linux kernel has support for any USB Audio Class 1 and Class 2 device. As long as you follow the USB Audion Class 1 or 2 spec, and design a HAT following Raspberry Pi specs, it should "just work™."
I had a DAC 2 HD arrive today. Popped it on a 3B+, booted the Pi with Raspbian Buster updated current, and could play music out of the DAC using mpd. No pops. No clicks. No stuttering.
Haven't tried a Pi 4 yet.
Andy Pastuszak: There are drivers specifically to our sound cards as these aren't USB audio devices. The connection is directly to the Pi's CPU, not using USB.
