# SPDX-License-Identifier: GPL-2.0-only
menuconfig USB4
tristate "Unified support for USB4 and Thunderbolt"
depends on PCI
select APPLE_PROPERTIES if EFI_STUB && X86
select CRC32
select CRYPTO
select CRYPTO_HASH
select NVMEM
help
USB4 and Thunderbolt driver. USB4 is the public speficiation
based on Thunderbolt 3 protocol. This driver is required if
you want to hotplug Thunderbolt and USB4 compliant devices on
Apple hardware or on PCs with Intel Falcon Ridge or newer.
To compile this driver a module, choose M here. The module will be
called thunderbolt.