USBD_Vendor_RdAsync
Description
Receive data from host through Bulk OUT endpoint. This function is non-blocking. It returns immediately after transfer preparation. Upon transfer completion, a callback provided by the application will be called to finalize the transfer.
Files
usbd_vendor.h / usbd_vendor.c
Prototype
void USBD_Vendor_RdAsync (CPU_INT08U class_nbr, void *p_buf, CPU_INT32U buf_len, USBD_VENDOR_ASYNC_FNCT async_fnct, void *p_async_arg, USBD_ERR *p_err);
Arguments
class_nbr
Class instance number.
p_buf
Pointer to receive buffer.
buf_len
Receive buffer length in octets.
async_fnct
Receive callback.
p_async_arg
Additional argument provided by application for receive callback.
p_err
Pointer to variable that will receive the return error code from this function.
USBD_ERR_NONE
USBD_ERR_NULL_PTR
USBD_ERR_INVALID_ARG
USBD_ERR_INVALID_CLASS_STATE
USBD_ERR_DEV_INVALID_NBR
USBD_ERR_EP_INVALID_NBR
USBD_ERR_DEV_INVALID_STATE
USBD_ERR_EP_INVALID_TYPE
USBD_ERR_EP_INVALID_STATE
Returned Value
None.
Callers
Application.
Notes / Warnings
None.