Function esp_idf_svc::sys::esp_wifi_internal_tx

source · 
pub unsafe extern "C" fn esp_wifi_internal_tx(
    wifi_if: u32,
    buffer: *mut c_void,
    len: u16,
) -> i32
Expand description

@brief transmit the buffer via wifi driver

This API makes a copy of the input buffer and then forwards the buffer copy to WiFi driver.

@param wifi_interface_t wifi_if : wifi interface id @param void *buffer : the buffer to be transmit @param uint16_t len : the length of buffer

@return

  • ESP_OK : Successfully transmit the buffer to wifi driver
  • ESP_ERR_NO_MEM: out of memory
  • ESP_ERR_INVALID_ARG: invalid argument
  • ESP_ERR_WIFI_IF : WiFi interface is invalid
  • ESP_ERR_WIFI_CONN : WiFi interface is not created, e.g. send the data to STA while WiFi mode is AP mode
  • ESP_ERR_WIFI_NOT_STARTED : WiFi is not started
  • ESP_ERR_WIFI_STATE : WiFi internal state is not ready, e.g. WiFi is not started
  • ESP_ERR_WIFI_NOT_ASSOC : WiFi is not associated
  • ESP_ERR_WIFI_TX_DISALLOW : WiFi TX is disallowed, e.g. WiFi hasn’t pass the authentication
  • ESP_ERR_WIFI_POST : caller fails to post event to WiFi task