feat(surface-arm64-usb4): USB4 authorization + Surface Dock docking support#4
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foil-copy-overrate wants to merge 18 commits into
Open
feat(surface-arm64-usb4): USB4 authorization + Surface Dock docking support#4foil-copy-overrate wants to merge 18 commits into
foil-copy-overrate wants to merge 18 commits into
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…kargs, no tpm2-luks)
…omm stack, sbctl)
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USB4 / Thunderbolt for Surface Laptop 7 (Snapdragon X Elite)
Adds USB4 device authorization and Surface Dock 2 support for Surface Laptop 7.
Background
Surface Laptop 7 has two USB4 v1.0 ports (Qualcomm implementation, not Intel TBT controller).
The upstream
thunderboltkernel driver handles USB4 on Qualcomm since kernel 6.11.Default kernel security policy is
authorized=0(denied) until authorized — this PRsets policy to auto-authorize (
authorized=1) via udev, matching the Surface default experience.Files
udev/rules.d/99-surface-usb4.rulesmodprobe.d/surface-arm64-usb4.confthunderbolt+typec_ucsioptionssystemd/system/surface-usb4.servicesystemd/system-preset/20-...-usb4.presetUSB4 capabilities on Surface Laptop 7
Security note
Auto-authorization (
authorized=1) is used for UX parity with Surface default firmware.For higher security deployments, replace with
tbtadm(per-device allowlist).See: https://github.com/intel/thunderbolt-software-user-space
Depends on
Base surface-arm64 PR #2 — no additional dependencies.