cdc_acm_transfers_allocate() function

Allocate CDC transfers

Syntax

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Summary

Declaration

from cdc_acm_host.c:531

static esp_err_t cdc_acm_transfers_allocate(cdc_dev_t *cdc_dev, const usb_ep_desc_t *notif_ep_desc, const usb_ep_desc_t *in_ep_desc, size_t in_buf_len, const usb_ep_desc_t *out_ep_desc, size_t out_buf_len);

Arguments

Argument

Description

cdc_dev

Pointer to CDC device

notif_ep_desc

Pointer to notification EP descriptor

in_ep_desc

in_buf_len

Length of data IN buffer

out_ep_desc

Pointer to data OUT EP descriptor

out_buf_len

Length of data OUT buffer

Return value

- ESP_OK: Success - ESP_ERR_NO_MEM: Not enough memory for transfers and semaphores allocation - ESP_ERR_NOT_FOUND: IN or OUT endpoints were not found in the selected interface

Examples

References

from examples

cdc_acm_transfers_allocate() function

Syntax

Arguments

Return value

Examples

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