Build audio J493 (Apple M2) driver for linux kernel

[vovkapoc]

Hello! I ported and installed in my MacBook (M2) linux OS (Fedora). I need opensource driver for my sound card (sound worked with native driver [dai-link], but sound quality is bad).
I check my sound card details in /sys/firmware/devicetree/base/sound:

root@fedora:/sys/firmware/devicetree/base/sound# find . -type f -exec xxd -c 24 {} \;
00000000: 4d61 6342 6f6f 6b20 5072 6f20 4a34 3933 00                   MacBook Pro J493.
00000000: 0000 00bf 0000 0000 0000 00bf 0000 0001                      ................
00000000: 6370 7500                                                    cpu.
00000000: 0000 00c0 0000 00c1 0000 00c2 0000 00c3                      ................
00000000: 636f 6465 6300                                               codec.
00000000: 5370 6561 6b65 7273 00                                       Speakers.
00000000: 6461 692d 6c69 6e6b 00                                       dai-link.
00000000: 6170 706c 652c 6a34 3933 2d6d 6163 6175 6469 6f00 6170 706c  apple,j493-macaudio.appl
00000018: 652c 6d61 6361 7564 696f 00                                  e,macaudio.
00000000: 736f 756e 6400                                               sound.
00000000: 0000 00bf 0000 0002                                          ........
00000000: 6370 7500                                                    cpu.
00000000: 0000 00c4                                                    ....
00000000: 636f 6465 6300                                               codec.
00000000: 4865 6164 7068 6f6e 6520 4a61 636b 00                        Headphone Jack.
00000000: 6461 692d 6c69 6e6b 00                                       dai-link.
root@fedora:/sys/firmware/devicetree/base/sound# 

From this dump my sound card detected as: MacBook Pro J493

How to build your custom sound driver for linux? It's really?
If this not really, maybe exists good opensource alternative driver for my sound card?

P.S. Sorry for my bad English, I from Ukraine...

[devinroth]

CoreAudio is a macOS API. I honestly have no idea what the solution is for Linux. Try searching for Linux Loopback driver.

…

On Apr 17, 2024 at 8:05 AM -0700, vovkapoc ***@***.***>, wrote: Hello! I ported and installed in my MacBook (M2) linux OS (Fedora). I need opensource driver for my sound card (sound worked with native driver, but sound quality is bad). I check my sound card details in /sys/firmware/devicetree/base/sound: ***@***.***:/sys/firmware/devicetree/base/sound# find . -type f -exec xxd -c 24 {} \; 00000000: 4d61 6342 6f6f 6b20 5072 6f20 4a34 3933 00 MacBook Pro J493. 00000000: 0000 00bf 0000 0000 0000 00bf 0000 0001 ................ 00000000: 6370 7500 cpu. 00000000: 0000 00c0 0000 00c1 0000 00c2 0000 00c3 ................ 00000000: 636f 6465 6300 codec. 00000000: 5370 6561 6b65 7273 00 Speakers. 00000000: 6461 692d 6c69 6e6b 00 dai-link. 00000000: 6170 706c 652c 6a34 3933 2d6d 6163 6175 6469 6f00 6170 706c apple,j493-macaudio.appl 00000018: 652c 6d61 6361 7564 696f 00 e,macaudio. 00000000: 736f 756e 6400 sound. 00000000: 0000 00bf 0000 0002 ........ 00000000: 6370 7500 cpu. 00000000: 0000 00c4 .... 00000000: 636f 6465 6300 codec. 00000000: 4865 6164 7068 6f6e 6520 4a61 636b 00 Headphone Jack. 00000000: 6461 692d 6c69 6e6b 00 dai-link. ***@***.***:/sys/firmware/devicetree/base/sound# From this dump my sound card detected as: MacBook Pro J493 How to build your custom sound driver for linux? It's really? If this not really, maybe exists good opensource alternative driver for my sound card? P.S. Sorry for my bad English, I from Ukraine... — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[vovkapoc]

Thank you for your reply! :-)