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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_alloc_dma_buffer()

i2s_alloc_dma_buffer() function

Syntax

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Summary

Declaration

from i2s_legacy.c:577

static esp_err_t i2s_alloc_dma_buffer(i2s_port_t i2s_num, i2s_dma_t *dma_obj);

Arguments

Argument

i2s_num

dma_obj

References

Code

Location

Referrer

static esp_err_t i2s_alloc_dma_buffer(i2s_port_t i2s_num, i2s_dma_t *dma_obj)

i2s_legacy.c:577

ESP_RETURN_ON_ERROR(i2s_alloc_dma_buffer(i2s_num, dma_obj), TAG, "Failed to allocate dma buffer");

i2s_legacy.c:630

i2s_realloc_dma_buffer()

Call Tree

i2s_alloc_dma_buffer() is called by 1 function and calls 5 functions:

i2s_realloc_dma_buffer()

i2s_alloc_dma_buffer()

esp_log_timestamp()

esp_log_write()

heap_caps_aligned_calloc()

i2s_ll_rx_set_eof_num()

i2s_delete_dma_buffer()

Data Use

i2s_alloc_dma_buffer() reads 15 variables and writes 8 variables:

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