USBD_IntrRxAsync

Description

Receives data on interrupt OUT endpoint asynchronously.

Files

usbd_core.h/usbd_core.c

Prototype

void  USBD_IntrRxAsync (CPU_INT08U        dev_nbr,
                        CPU_INT08U        ep_addr,
                        void             *p_buf,
                        CPU_INT32U        buf_len,
                        USBD_ASYNC_FNCT   async_fnct,
                        void             *p_async_arg,
                        USBD_ERR         *p_err);

Arguments

dev_nbr

Device number.

ep_addr

Endpoint address.

p_buf

Pointer to destination buffer to receive data

buf_len

Number of octets to receive.

async_fnct

Function that will be invoked upon completion of receive operation

p_async_arg

Pointer to argument that will be passed as parameter of async_fnct.

p_err

Pointer to variable that will receive the return error code from this function.

USBD_ERR_NONE

USBD_ERR_DEV_INVALID_NBR

USBD_ERR_DEV_INVALID_STATE

USBD_ERR_EP_INVALID_ADDR

USBD_ERR_EP_INVALID_STATE

USBD_ERR_EP_INVALID_TYPE

USBD_ERR_OS_TIMEOUT

USBD_ERR_OS_ABORT

USBD_ERR_OS_FAIL

Returned Value

None.

Callers

Classes.

Notes / Warnings

The callback specified by async_fnct has the following prototype.

void  USB_AsyncFnct (CPU_INT08U   dev_nbr,
                     CPU_INT08U   ep_addr,
                     void        *p_buf,
                     CPU_INT32U   buf_len,
                     CPU_INT32U   xfer_len,
                     void        *p_arg,
                     USBD_ERR     err);

Argument(s):

dev_nbr

Device number.

ep_addr

Endpoint address.

p_buf

Pointer to destination buffer to receive data.

buf_len

Buffer length.

xfer_len

Number of byte received.

p_arg

Pointer to function argument.

err

Error status.

USBD_ERR_NONE

USBD_ERR_EP_ABORT