UM10503
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User manual
Rev. 2.1 — 10 December 2015
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NXP Semiconductors
UM10503
Chapter 27: LPC43xx/LPC43Sxx USB API
HID_EpOut_Hdlr
ErrorCode_t(* USBD_HID_INIT_PARAM::HID_EpOut_Hdlr)(USBD_HANDLE_T hUsb, void *data, uint32_t event)
Optional Interrupt OUT endpoint event handler.
The application software could provide Interrupt OUT endpoint event handler. Application which
receives reports from host on interrupt endpoint should provide an endpoint event handler through
this data member. This data member is ignored if the interface descriptor
Parameters:
1. hUsb = Handle to the USB device stack.
2. data = Handle to HID function driver.
3. event = Type of endpoint event. See USBD_EVENT_T for more details.
Returns:
The call back should return 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.
HID_GetReportDesc
ErrorCode_t(* USBD_HID_INIT_PARAM::HID_GetReportDesc)(USBD_HANDLE_T hHid, USB_SETUP_PACKET
*pSetup, uint8_t **pBuf, uint16_t *length)
Optional user overridable function to replace the default HID_GetReportDesc handler.
The application software could override the default HID_GetReportDesc handler with their own by
providing the handler function address as this data member of the parameter structure. Application
which like the default handler should set this data member to zero before calling the
USBD_HID_API::Init() and also provide report data array
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 595. USBD_HID_INIT_PARAM class structure
Member
Description
