Kernel 7.3 names the FP6 sound card "MILOS-Fairphone-Gen6" (upstream's DTS;
7.2 said "Fairphone (Gen. 6)"). The q6apm topology loader requests
qcom/milos/<model>-tplg.bin and alsa-ucm resolves conf.d/milos/<model>.conf,
so the two files are installed under the new name, with the old name as a
symlink to each; the file contents are unchanged. The files either kernel
asks for are present, the one still running between an upgrade and the
reboot included, so the package carries no version bound to the kernel.
A new pkgver rather than a pkgrel, so the kernel can name the floor:
pmbootstrap resolves a versioned dependency on an aport by pkgver alone.
Dev phone with these files: on 7.3 the card MILOS-Fairphone-Gen6 is up with
UCM verb HiFi, its playback PCM runs under pw-play and capture passes;
booted into 7.2 the card Fairphone (Gen. 6) finds its UCM through the link
and capture passes as well.
The preset fix (6ecc1dc) makes the unit run, but multi-user is too late: the
sound card probes at ~21 s, hard-fails (-2, no retry) on the missing ACF, and
the extractor's amp rebind at ~60 s cannot re-form a card whose machine
driver already failed. Re-probing the machine driver does re-form it, but a
late-formed card has a dead capture path - the wcd9378 TX sequencer refuses
PS0 (act_ps 0x3) until the next boot. So rebinding after the fact can never
fully win; extraction has to happen before the drivers probe.
- fp6-vendor-blobs.service: DefaultDependencies=no, run after remount-fs and
before systemd-udev-trigger, so blobs exist before module coldplug.
multi-user stays a second Wants as a post-udev retry if the early run
failed (by-partlabel/make-dynpart-mappings fallbacks need udev).
- aw88261-acf.manifest: add 'rebind platform sound' so the fallback path at
least recovers playback the same boot (capture then heals on reboot).
- fp6-vendor-blobs.post-upgrade (pkgrel 1): systemctl preset + immediate
extract, so installs of the 2026-08-24 image (unit shipped disabled, no
version bump to deliver the preset) finally heal via plain apk upgrade.
- soc-fairphone-fp6-audio pkgrel 1: carries the manifest change.
Verified on the dev phone with the exact staged bytes (sha256-compared):
simulated fresh install (ACF removed, reboot) extracts at 13.3 s, coldplug
probes the amps at 15.1 s, card init at 20.9 s loads the ACF cleanly, and a
1 kHz speaker-to-mic loopback passes on that same first boot with zero TX
sequencer warnings; next boot takes the all-dests-present fast path in 25 ms.
Evidence: fp6 repo journal/blobs/, 2026-08-29.
Assisted-by: Claude:claude-fable-5
New package fp6-vendor-blobs: a manifest-driven systemd oneshot that
copies proprietary blobs out of the stock Android partitions on first
boot. pmOS installs flash only boot+userdata, so every installed unit
still carries the stock vendor/dsp partitions - the device duplicates a
file it already contains, for its own operation, and nothing proprietary
is distributed by us. Partitions are mounted read-only (ext4 additionally
with noload - not even a journal replay touches the stock data), every
copy is sha256-pinned and a miss fails loudly, and the consuming devices
are unbound and re-probed afterwards so the feature works the same boot.
The rebind is unconditional by design: aw88261 binds on a bare i2c
chip-id probe and requests the ACF only at ASoC card init (~21 s, after
SoundWire enumeration), so a bound device can still be one that lost the
firmware race - and that failed request is never retried.
soc-fairphone-fp6-audio (pkgver 4) stops shipping the blob, installs the
manifest fragment instead, and re-runs the extractor from
post-install/post-upgrade so upgrades restore the file immediately (the
old package version removed it on upgrade). License drops back to plain
BSD-3-Clause - nothing proprietary left in the package.
Verified on the dev phone (fp6 repo journal/blobs/captures/
2026-08-24-first-boot-extractor-verification.txt): first-boot extraction
+ same-boot audio, mid-session post-upgrade recovery, and the everyday
fast-path no-op; committed files byte-identical to the tested deployment.
Assisted-by: Claude:claude-fable-5
The package declared BSD-3-Clause while shipping aw88261_acf.bin, a
verbatim proprietary Awinic blob extracted from the stock vendor
partition - an affirmative false claim about the file. Mark the license
compound (BSD-3-Clause AND proprietary) and document per-file provenance;
the durable fix (FairBlobs adoption or install-time on-device extraction)
is tracked in the audio journal.
Assisted-by: Claude:claude-fable-5
Full-system audit findings: without an explicit provider selection the
image installed real PulseAudio (Plasma Mobile hard-path), which claims
the card and ships a wireplumber fragment disabling hardware.audio -
zero sinks forever. Mirror the dev phone's world: pipewire backend meta
+ pipewire-pulse + echo-cancel in extra_packages, pulse meta banned via
apk conflict in fp6-device-tweaks. The two hand-made /etc audio
fragments (wireplumber no-ACP rule, AEC pair for VoLTE speakerphone)
move into soc-fairphone-fp6-audio.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Files copied byte-identical from the tested dev phone; installed to the
exact deployed paths (the spaced tplg/UCM filenames come from the machine
driver's card name). Wired into the image via extra_packages.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
