USBD_Callbacks_TypeDef Struct Reference
Hardware Abstraction Layer (HAL) API Reference > USB Device Stack Library > USB Device API

USB Device stack callback structure.

#include < em_usb.h >

Data Fields

const USBD_UsbResetCb_TypeDef usbReset
const USBD_DeviceStateChangeCb_TypeDef usbStateChange
const USBD_SetupCmdCb_TypeDef setupCmd
const USBD_IsSelfPoweredCb_TypeDef isSelfPowered
const USBD_SofIntCb_TypeDef sofInt

Callback functions used by the device stack to signal events or query status to/from the application. See USBD_Init_TypeDef . Assign members to NULL if your application don't need a specific callback.

Field Documentation

const USBD_IsSelfPoweredCb_TypeDef USBD_Callbacks_TypeDef::isSelfPowered

Called whenever the device stack needs to query if the device is currently self- or bus-powered. Applies to devices which can operate in both modes.

const USBD_SetupCmdCb_TypeDef USBD_Callbacks_TypeDef::setupCmd

Called on each setup request received from host.

const USBD_SofIntCb_TypeDef USBD_Callbacks_TypeDef::sofInt

Called at each SOF interrupt. If NULL, the device stack will not enable the SOF interrupt.

const USBD_UsbResetCb_TypeDef USBD_Callbacks_TypeDef::usbReset

Called whenever USB reset signalling is detected on the USB port.

const USBD_DeviceStateChangeCb_TypeDef USBD_Callbacks_TypeDef::usbStateChange

Called whenever the device change state.

The documentation for this struct was generated from the following file:
  • em_usb.h