[riot-notifications] [RIOT-OS/RIOT] [WIP] sam0_common: Add USB peripheral driver (#10915)

Dylan Laduranty notifications at github.com
Sat Feb 9 21:57:21 CET 2019

dylad commented on this pull request.

> +
+ * @brief   Event callback for signaling usbdev event to upper layers
+ *
+ * @param[in] usbdev        usbdev context
+ * @param[in] event         type of the event
+ */
+typedef void (*usbdev_event_cb_t)(usbdev_t *usbdev, usbdev_event_t event);
+ * @brief usbdev device descriptor
+ */
+struct usbdev {
+    const struct usbdev_driver *driver;     /**< usbdev driver struct   */
+    usbdev_event_cb_t cb;                   /**< Event callback supplied by
+                                              *  upper layer */

What about adding `UsbDevice` struct from atmel vendor files ? In the current state, this driver works fine with one USB device instance but maybe one day we will have several USB within a MCU.
This way we can replace all USB->DEVICE from the driver by a more generic call.

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