Here are the data structures with brief descriptions:
  at25_cmd | SerialFlash transfers request prepared by the AT25 driver |
| dfll_config | Hardware-specific representation of DFLL configuration |
| genclk_config | Hardware representation of a set of generic clock parameters |
| pll_config | Hardware-specific representation of PLL configuration |
| sam4l_status_msg_t | |
| sam4l_status_t | |
| sam_usart_opt_t | |
| spi_device | Polled SPI device definition |
| StructCPtr | Structure of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers |
| StructCVPtr | Structure of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers |
| StructPtr | Structure of pointers to 64-, 32-, 16- and 8-bit unsigned integers |
| StructVPtr | Structure of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers |
| test_case | A test case |
| test_suite | A test suite |
| uart_rs232_options | Input parameters when initializing RS232 and similar modes |
| Union16 | 16-bit union |
| Union32 | 32-bit union |
| Union64 | 64-bit union |
| UnionCPtr | Union of pointers to constant 64-, 32-, 16- and 8-bit unsigned integers |
| UnionCVPtr | Union of pointers to constant volatile 64-, 32-, 16- and 8-bit unsigned integers |
| UnionPtr | Union of pointers to 64-, 32-, 16- and 8-bit unsigned integers |
| UnionVPtr | Union of pointers to volatile 64-, 32-, 16- and 8-bit unsigned integers |
| usart_iso7816_opt_t | |
| usart_spi_opt_t | |
| wdt_config | Watchdog Timer configuration structure |
 wdt_dev_inst | Watchdog Timer driver software instance structure |
1.8.5