drivers/thunderbolt/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 menuconfig USB4
   3         tristate "Unified support for USB4 and Thunderbolt"
   4         depends on PCI
   5         select APPLE_PROPERTIES if EFI_STUB && X86
   6         select CRC32
   7         select CRYPTO
   8         select CRYPTO_HASH
   9         select NVMEM
  10         help
  11           USB4 and Thunderbolt driver. USB4 is the public specification
  12           based on the Thunderbolt 3 protocol. This driver is required if
  13           you want to hotplug Thunderbolt and USB4 compliant devices on
  14           Apple hardware or on PCs with Intel Falcon Ridge or newer.
  15
  16           To compile this driver a module, choose M here. The module will be
  17           called thunderbolt.
  18
  19 if USB4
  20
  21 config USB4_DEBUGFS_WRITE
  22         bool "Enable write by debugfs to configuration spaces (DANGEROUS)"
  23         help
  24           Enables writing to device configuration registers through
  25           debugfs interface.
  26
  27           Only enable this if you know what you are doing! Never enable
  28           this for production systems or distro kernels.
  29
  30 config USB4_KUNIT_TEST
  31         bool "KUnit tests" if !KUNIT_ALL_TESTS
  32         depends on (USB4=m || KUNIT=y)
  33         depends on KUNIT
  34         default KUNIT_ALL_TESTS
  35
  36 config USB4_DMA_TEST
  37         tristate "DMA traffic test driver"
  38         depends on DEBUG_FS
  39         help
  40           This allows sending and receiving DMA traffic through loopback
  41           connection. Loopback connection can be done by either special
  42           dongle that has TX/RX lines crossed, or by simply connecting a
  43           cable back to the host. Only enable this if you know what you
  44           are doing. Normal users and distro kernels should say N here.
  45
  46           To compile this driver a module, choose M here. The module will be
  47           called thunderbolt_dma_test.
  48
  49 endif # USB4