Unverified50% confidenceFactExact time
NetBSD的bus_space和bus_dma抽象接口为设备驱动提供统一的硬件寄存器访问和DMA操作API，使驱动程序可跨平台运行
1
Sources
50%
Confidence
Long-term
Relevance
8/25/2026
First Seen
Sources
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