Description
Creates an interface group.
Files
usbd_core.h/usbd_core.c
Prototype
Arguments
dev_nbr
Device number.
cfg_nbr
Configuration index to add the interface.
p_class_drv
Pointer to interface driver.
p_class_arg
Pointer to interface driver argument.
class_code
Class code assigned by the USB-IF.
class_sub_code
Subclass code assigned by the USB-IF.
class_protocol_code
Protocol code assigned by the USB-IF.
if_start
Interface number of the first interface that is associated with this group
if_cnt
Number of consecutive interfaces that are associated with this group.
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_CFG_INVALID_NBR
USBD_ERR_IF_INVALID_NBR
USBD_ERR_IF_GRP_NBR_IN_USE
USBD_ERR_IF_GRP_ALLOC
Returned Value
Interface group number, if no errors.
USBD_IF_GRP_NBR_NONE, otherwise.
Callers
Classes.
Notes / Warnings
None.