Function esp_idf_svc::sys::esp_ble_gap_read_phy

pub unsafe extern "C" fn esp_ble_gap_read_phy(bd_addr: *mut u8) -> i32

@brief This function is used to read the current transmitter PHY and receiver PHY on the connection identified by remote address.

@param[in] bd_addr : BD address of the peer device

@return - ESP_OK : success - other : failed