Merge pull request #8425 from aabadie/pr/soft_spi_doxygen

drivers/soft_spi: move to drivers_periph group

drivers/doc.txt

@@ -43,3 +43,9 @@
  * @ingroup     drivers
  * @brief       Drivers for storage devices
  */
+
+ /**
+ * @defgroup    drivers_soft_periph Soft Peripheral Driver Interface
+ * @ingroup     drivers
+ * @brief       Software emulated @ref drivers_periph for UART, SPI, etc
+ */

drivers/include/soft_spi.h

@@ -8,8 +8,9 @@
 
 /**
  * @defgroup    drivers_soft_spi Soft SPI
- * @ingroup     drivers
+ * @ingroup     drivers_soft_periph
  * @brief       Software implemented Serial Peripheral Interface bus
+ *
  * This module provides a software implemented Serial Peripheral Interface bus.
  * It is intended to be used in situation where hardware spi is not available.
  * The signatures of the functions are similar to the functions declared in spi.h