Description
Receive data on control OUT endpoint.
Files
usbd_core.h/usbd_ep.c
Prototype
Arguments
dev_nbr
Device number.
p_buf
Pointer to buffer of data that will be sent
buf_len
Number of octets to transmit.
timeout_ms
Timeout in milliseconds.
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
Number of octets received If no error(s).
0, otherwise.
Callers
Classes.
Application.
Notes / Warnings
This function can be only called from USB device class drivers during class specific setup request callbacks.