dma_map_single example
For example, memory allocated by vmalloc has a virtual address (but no direct ... dma_addr_t dma_map_single(struct device *dev, void *buffer, size_t size, ... ,2013年11月13日 — I have been trying to make the following trivial example code work in my module (kernel versions 2.6. 32, 2.6. · Up vote 2 Down vote Accepted. ,For example, a pointer to the device struct of ... For example, Sparc64 PCI SAC addressing is ... dma_handle = dma_map_single(dev, addr, size, direction);. ,2017年10月4日 — With dma_map_single you map the memory for DMA transfer. ... measure_time(dma_unmap_single + dma_map_single). Short Example: ,Using dma_map_single(). *. * Using a DMA Pool. *. * You can use NULL for the device and/or pci_dev structure arguments. * since we don't actually have a ... ,For example, if a PCI device has a BAR, the kernel reads the bus address (A) ... the driver can give a virtual address X to an interface like dma_map_single(), ... ,The size parameter of the mapping functions like dma_map_single(), ... As an example of the use of the ``*_attrs`` functions, here's how you could pass an ... ,For a more gentle introduction of the API (and actual examples), see Dynamic ... dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, size_t size, ... ,Using dma_map_single() * * Using a DMA Pool. * * You should use NULL for the device and/or pci_dev structure * arguments for the first and the third methods, ... ,Maybe an example from Xilinx can help: http://www.wiki.xilinx.com/Zynq+Linux+pl330+DMA. And driver from Samsung (already contained in linux kernel): ...
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 dma_map_single example 相關參考資料
15. Memory Mapping and DMA - Linux Device Drivers, 3rd ...
For example, memory allocated by vmalloc has a virtual address (but no direct ... dma_addr_t dma_map_single(struct device *dev, void *buffer, size_t size, ... https://www.oreilly.com dma_map_single(): minimum requirements to struct device ...
2013年11月13日 — I have been trying to make the following trivial example code work in my module (kernel versions 2.6. 32, 2.6. · Up vote 2 Down vote Accepted. https://stackoverflow.com DocumentationDMA-API-HOWTO.txt - kernelomap - Git at ...
For example, a pointer to the device struct of ... For example, Sparc64 PCI SAC addressing is ... dma_handle = dma_map_single(dev, addr, size, direction);. https://android.googlesource.c Does every dma_map_single call require a corresponding ...
2017年10月4日 — With dma_map_single you map the memory for DMA transfer. ... measure_time(dma_unmap_single + dma_map_single). Short Example: https://stackoverflow.com driver-samplesdog1.c at master · bgmerrelldriver-samples ...
Using dma_map_single(). *. * Using a DMA Pool. *. * You can use NULL for the device and/or pci_dev structure arguments. * since we don't actually have a ... https://github.com Dynamic DMA mapping Guide ...
For example, if a PCI device has a BAR, the kernel reads the bus address (A) ... the driver can give a virtual address X to an interface like dma_map_single(), ... https://www.kernel.org Dynamic DMA mapping using the generic device ...
The size parameter of the mapping functions like dma_map_single(), ... As an example of the use of the ``*_attrs`` functions, here's how you could pass an ... https://www.kernel.org Dynamic DMA mapping using the generic device — The Linux ...
For a more gentle introduction of the API (and actual examples), see Dynamic ... dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, size_t size, ... https://www.kernel.org LDD:2.0 s_23lab1_dma.c **************** * * * The code ...
Using dma_map_single() * * Using a DMA Pool. * * You should use NULL for the device and/or pci_dev structure * arguments for the first and the third methods, ... http://mercury.pr.erau.edu Linux DMA operations - how to initiate a transfer - Stack ...
Maybe an example from Xilinx can help: http://www.wiki.xilinx.com/Zynq+Linux+pl330+DMA. And driver from Samsung (already contained in linux kernel): ... https://stackoverflow.com |