UM10503
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User manual
Rev. 1.3 — 6 July 2012
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NXP Semiconductors
UM10503
Chapter 25: LPC43xx USB API
CDC_BulkIN_Hdlr
ErrorCode_t(*ErrorCode_t(* USBD_CDC_INIT_PARAM::CDC_BulkIN_Hdlr)(USBD_HANDLE_T hUsb, void
*data, uint32_t event))(USBD_HANDLE_T hUsb, void *data, uint32_t event)
Communication Device Class specific BULK IN endpoint handler.
The application software should provide the BULK IN endpoint handler. Applications should
transfer data depending on the communication protocol type set in descriptors.
Remark:
Parameters:
1. hUsb = Handle to the USB device stack.
2. data = Pointer to the data which will be passed when callback function is called by the
stack.
3. event = Type of endpoint event. See USBD_EVENT_T for more details.
Returns:
The call back should returns ErrorCode_t type to indicate success or error condition.
Return values:
1. LPC_OK = On success.
2. ERR_USBD_UNHANDLED = Event is not handled hence pass the event to next in line.
3. ERR_USBD_xxx = For other error conditions.
CDC_BulkOUT_Hdlr
ErrorCode_t(*ErrorCode_t(* USBD_CDC_INIT_PARAM::CDC_BulkOUT_Hdlr)(USBD_HANDLE_T hUsb, void
*data, uint32_t event))(USBD_HANDLE_T hUsb, void *data, uint32_t event)
Communication Device Class specific BULK OUT endpoint handler.
The application software should provide the BULK OUT endpoint handler. Applications
should transfer data depending on the communication protocol type set in descriptors.
Remark:
Parameters:
1. hUsb = Handle to the USB device stack.
2. data = Pointer to the data which will be passed when callback function is called by the
stack.
3. event = Type of endpoint event. See USBD_EVENT_T for more details.
Returns:
The call back should returns ErrorCode_t type to indicate success or error condition.
Return values:
1. LPC_OK = On success.
2. ERR_USBD_UNHANDLED = Event is not handled hence pass the event to next in line.
3. ERR_USBD_xxx = For other error conditions.
Table 520. USBD_CDC_INIT_PARAM class structure
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