Add RTL8812EU/RTL8822EU adapter support (untested on hardware)

[wkumik]

Warning

⚠️ UNTESTED on real hardware. This is compile-tested only (arm64-v8a + armeabi-v7a build cleanly and the APK packages). It has not yet been flown or bench-tested with an RTL8812EU adapter, and the RTL8812AU path has not been regression-tested either. Testers with a BL-M8812EU2 (or any 8812EU/8822EU dongle) very welcome.

What

Adds support for RTL8812EU / RTL8822EU adapters (e.g. the LB-LINK BL-M8812EU2), the widely available successor to the EOL'd RTL8812AU, by updating the devourer submodule to current master and porting the native layer to its new multi-generation IRtlDevice API.

Upstream devourer now dispatches on the hardware chip-id (SYS_CFG2) at plug-in: RTL8812AU-family adapters take the Jaguar1 path (same code lineage as before), RTL8812EU/8822EU take the Jaguar3 path. This build compiles in Jaguar1 + Jaguar3-8822E support.

Changes

• devourer submodule: old pin → current master (73f1cb4).
• CMakeLists.txt: devourer source list rebuilt for the new upstream layout (upstream's own CMake needs pkg-config for libusb, unavailable in the NDK build, so the source groups are mirrored manually as before).
• WfbngLink: ported to IRtlDevice:
  • bring-up is InitWrite + StartRxLoop instead of the old blocking Init. On Jaguar3 this is required for TX+RX on one USB handle (cfg.rx.enable_with_tx must be declared before bring-up) and it starts the coex runtime thread without which the 8822E silences its antenna during sustained TX. On Jaguar1, InitWrite + StartRxLoop is exactly what Init did internally, so 8812AU behavior is unchanged.
  • stop path uses StopRxLoop() + Stop() (clean chip power-down) instead of poking the removed should_stop field.
  • the manual libusb_handle_events thread is dropped — devourer's RX loop pumps events itself.
  • devourer's per-adapter advisory lock is pointed at the app files dir (Android has no /tmp).
  • the driver now gets a real Logger, which lands in logcat under the devourer tag.
• TxFrame: takes the chip-agnostic IRtlDevice*.
• usb_device_filter.xml: adds 0BDA:A81A (RTL8812EU), 0BDA:A82A / 0BDA:E822 (RTL8822EU).

Notes for testers

• Keep the air side at 20 MHz bandwidth for first tests — the 8812EU does 5/10/20 MHz TX but 40 MHz is RX-only.
• adb logcat -s devourer shows the bring-up; expect Creating RtlJaguar3Device (PID 0xa81a, chip-id 0x17) for an 8812EU and Creating RtlJaguarDevice for an 8812AU.
• Things to verify: video RX, mavlink, adaptive-link TX power control (SetTxPower semantics changed upstream from a pre-efuse fallback to a real flat TXAGC override on all generations), channel/bandwidth switching, and adapter hot-replug.

🤖 Generated with Claude Code

https://claude.ai/code/session_01M1hdzm5Fs8XKS1AqymRm7r