# and renumber the interfaces in order. But we still need to fix up certain
# interface cross-references.
interfaces = util.join_interfaces(cdc_interfaces, msc_interfaces,
hid_interfaces)
# Now adjust the CDC interface cross-references.
cdc_union.bMasterInterface = cdc_comm_interface.bInterfaceNumber
cdc_union.bSlaveInterface_list = [cdc_data_interface.bInterfaceNumber]
cdc_call_management.bDataInterface = cdc_data_interface.bInterfaceNumber
cdc_iad = standard.InterfaceAssociationDescriptor(
description="CDC IAD",
bFirstInterface=cdc_comm_interface.bInterfaceNumber,
bInterfaceCount=len(cdc_interfaces),
bFunctionClass=0x2, # Communications Device Class
bFunctionSubClass=0x2, # Abstract control model
bFunctionProtocol=0x1)
configuration = standard.ConfigurationDescriptor(
description="Composite configuration",
wTotalLength=(standard.ConfigurationDescriptor.bLength + cdc_iad.bLength +
sum([len(bytes(x)) for x in interfaces])),
bNumInterfaces=len(interfaces))
descriptor_list = []
descriptor_list.append(device)
descriptor_list.append(configuration)
descriptor_list.append(cdc_iad)
descriptor_list.extend(cdc_interfaces)
# This will renumber the endpoints to make them unique across descriptors,
# and renumber the interfaces in order. But we still need to fix up certain
# interface cross-references.
interfaces = util.join_interfaces(cdc_interfaces, msc_interfaces, hid_interfaces, audio_interfaces)
# Now adjust the CDC interface cross-references.
cdc_union.bMasterInterface = cdc_comm_interface.bInterfaceNumber
cdc_union.bSlaveInterface_list = [cdc_data_interface.bInterfaceNumber]
cdc_call_management.bDataInterface = cdc_data_interface.bInterfaceNumber
cdc_iad = standard.InterfaceAssociationDescriptor(
description="CDC IAD",
bFirstInterface=cdc_comm_interface.bInterfaceNumber,
bInterfaceCount=len(cdc_interfaces),
bFunctionClass=cdc.CDC_CLASS_COMM, # Communications Device Class
bFunctionSubClass=cdc.CDC_SUBCLASS_ACM, # Abstract control model
bFunctionProtocol=cdc.CDC_PROTOCOL_NONE)
descriptor_list = []
if 'CDC' in args.devices:
# Put the CDC IAD just before the CDC interfaces.
# There appears to be a bug in the Windows composite USB driver that requests the
# HID report descriptor with the wrong interface number if the HID interface is not given
# first. However, it still fetches the descriptor anyway. We could reorder the interfaces but
# the Windows 7 Adafruit_usbser.inf file thinks CDC is at Interface 0, so we'll leave it
# there for backwards compatibility.
descriptor_list.append(cdc_iad)
descriptor_list.extend(cdc_interfaces)
standard.EndpointDescriptor(
bEndpointAddress=0x0
| standard.EndpointDescriptor.DIRECTION_IN,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK),
standard.EndpointDescriptor(
bEndpointAddress=0x1
| standard.EndpointDescriptor.DIRECTION_OUT,
bmAttributes=standard.EndpointDescriptor.TYPE_BULK)
])
]
interfaces = util.join_interfaces(cdc_interfaces, msc_interfaces)
cdc_function = standard.InterfaceAssociationDescriptor(
bFirstInterface=interfaces.index(cdc_interfaces[0]),
bInterfaceCount=len(cdc_interfaces),
bFunctionClass=0x2, # Communications Device Class
bFunctionSubClass=0x2, # Abstract control model
bFunctionProtocol=0x1) # Common AT Commands
configuration = standard.ConfigurationDescriptor(
wTotalLength=(standard.ConfigurationDescriptor.bLength +
cdc_function.bLength +
sum([len(bytes(x)) for x in interfaces])),
bNumInterfaces=len(interfaces))
descriptor_list = [device, configuration, cdc_function]
descriptor_list.extend(interfaces)
descriptor_list.extend(strings)
output_file = args.output_file
