dma_descriptor_s struct

Type of DMA descriptor the aligned to 4 bytes

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Declaration

Definition

from dma_types.h:20

typedef struct dma_descriptor_s dma_descriptor_t;

Implemented in dma_types.h:21

Fields

Field

Declared as

Description

dma_descriptor_s::dw0

struct { uint32_t size : 12; uint32_t length : 12; uint32_t reversed24_27 : 4; uint32_t err_eof : 1; uint32_t reserved29 : 1; uint32_t suc_eof : 1; uint32_t owner : 1; }

Descriptor Word 0.

dma_descriptor_s::buffer

void *

Pointer to the buffer.

dma_descriptor_s::next

dma_descriptor_t *

Pointer to the next descriptor (set to NULL if the descriptor is the last one, e.g. suc_eof=1).

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dma_descriptor_s struct

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dma_descriptor_s struct

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