Description
Transmits data to the host through an interrupt IN endpoint.
Files
usbd_hid.h/usbd_hid.c
Prototype
Arguments
class_nbr
Class instance number.
p_buf
Pointer to transmit buffer.
buf_len
Transmit buffer length, in octets.
timeout
Timeout, in milliseconds.
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
Returned Value
Number of octets transmitted, if NO error(s).
0, otherwise.
Callers
Application.
Notes / Warnings
None.