The vendor NPU driver or the upstream one? Based on this it looks like upstream isn't merged yet: https://gitlab.collabora.com/hardware-enablement/rockchip-3588/notes-for-rockchip-3588/-/blob/main/mainline-status.md) I think armbian images for the RK1 build with the vendor kernel by default, which I think has the non-upstream driver from Rockchip, right? Someone please correct me here if I'm wrong https://github.com/armbian/community/releases/tag/25.8.0-trunk.356 > https://github.com/armbian/community/releases/download/25.8.0-trunk.356/Armbian_community_25.8.0-trunk.356_Turing-rk1_bookworm_vendor_6.1.115_minimal.img.xz