diff options
Diffstat (limited to 'drivers/thunderbolt/Kconfig')
| -rw-r--r-- | drivers/thunderbolt/Kconfig | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/thunderbolt/Kconfig b/drivers/thunderbolt/Kconfig index 448fd2ec8f6e..0abdb69ee9f4 100644 --- a/drivers/thunderbolt/Kconfig +++ b/drivers/thunderbolt/Kconfig @@ -22,20 +22,25 @@ config USB4_DEBUGFS_WRITE bool "Enable write by debugfs to configuration spaces (DANGEROUS)" help Enables writing to device configuration registers through - debugfs interface. + debugfs interface. You can use tools such as Thunderbolt/USB4 + debugging tools to access these registers. For more + information see: + + https://github.com/intel/tbtools Only enable this if you know what you are doing! Never enable this for production systems or distro kernels. config USB4_DEBUGFS_MARGINING - bool "Expose receiver lane margining operations under USB4 ports (DANGEROUS)" + bool "Expose receiver lane margining operations under USB4 ports and retimers (DANGEROUS)" depends on DEBUG_FS depends on USB4_DEBUGFS_WRITE help - Enables hardware and software based receiver lane margining support - under each USB4 port. Used for electrical quality and robustness - validation during manufacturing. Should not be enabled by distro - kernels. + Enables hardware and software based receiver lane margining + support under each USB4 port and retimer, including retimers + on the other side of the cable. Used for electrical quality + and robustness validation during manufacturing. Should not be + enabled by distro kernels. config USB4_KUNIT_TEST bool "KUnit tests" if !KUNIT_ALL_TESTS |