Bosses, I now need to the development of 4412 chip peripherals use dma driver, but found only 2440 of these chips, Linux source also didn't see where the 4412 dma is, so want to bosses to some examples of the dma, about 4412 or development related information, or give a dma write ideas

CodePudding user response:

This is a classic processor, the DMA channel is very much, but want to use up, still need to study the DMA controller information a lot

CodePudding user response:

This is a classic processor, the DMA channel is very much, but want to use up, still need to study the DMA controller information a lot

CodePudding user response:

Download the source code, the dma should be opened by default