19 lines
483 B
Markdown
19 lines
483 B
Markdown
- 文件夹说明
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- driver/dma/
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- dw ==还不知道干吗用的==
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- dw-edma pcie中的dma控制器
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- dw-axi-dmac axi-dma（sysdma）
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- 数据结构
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- struct dma_device
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- 通道数量
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- 能力集函数
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- struct dma_async_tx_descriptor
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- struct dmacpy_info
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- drivers/dma/dmacpy
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- ioctl
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- DMACPY_IOC_CPY
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- struct dmacpy_info \*info = (struct dmacpy_info \*)file->private_data;
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- dmacpy_start_copy
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- prepare_copy
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- dmaengine_submit
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- DMACPY_IOC_CHANNEL |