dma_map_single example

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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