Nvn: Api Version 55.15

When working with Nvn API Version 55.15, compatibility is king. Here is the official supported configuration:

| Component | Minimum Version | |----------------------------|-----------------------------------------------| | Tegra SoC | Orin AGX / Orin NX (also partially on Xavier, but without DSC) | | L4T (Linux for Tegra) | R35.4.1 or newer | | NVIDIA DriveOS | DriveOS 6.0.8+ | | Kernel Driver | nvhost 550.15.0+ | | User-space Nvn Library | libnvn.so.55.15.0 | | Companion GPU API | Vulkan 1.3 (for debugging via VK_LAYER_NVN_monitor) | Nvn Api Version 55.15

Note: Version 55.15 is not backward compatible with Tegra X1 or TX2. Attempting to use it on those platforms will result in NVN_ERROR_INCOMPATIBLE_DEVICE at initialization. When working with Nvn API Version 55


While the 55.x series introduced major feature sets (such as enhanced shader intrinsics), version 55.15 focuses on robustness and specific hardware quirks. Note: Version 55

NVN API Version 55.15 is a specific iteration of NVIDIA’s low-level, platform-specific graphics and compute API, primarily designed for Nintendo Switch and other Tegra-based embedded systems. This version number corresponds to a particular feature set, optimization level, and compatibility layer used in software development—most notably within game engines, emulators (such as Ryujinx and yuzu), and system firmware updates. Version 55.15 is considered a mature, stable release in the NVN version lineage, bridging early Switch development (v1.0) and later versions used on Switch OLED and potential future hardware.

NVMe is a protocol for accessing non-volatile memory (NVM) devices, such as flash storage. It provides a high-performance, low-latency interface for storage devices, making it ideal for modern storage solutions.