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