Description
Send data on CDC data class interface.
Files
usbd_cdc.h/usbd_cdc.c
Prototype
Arguments
class_nbr
CDC instance number.
data_if_nbr
CDC data interface number.
p_buf
Pointer to buffer of data that will be transmitted.
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_INVALID_ARG
USBD_ERR_INVALID_CLASS_STATE
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
Numbers of octets transmitted, if no errors.
0, otherwise.
Callers
CDC Subclass drivers.
Notes / Warnings
None.