/usr/src/linux-headers-5.15.0-181/drivers/rapidio/devices
Edit: /usr/src/linux-headers-5.15.0-181/drivers/rapidio/devices/Kconfig (289B)
# SPDX-License-Identifier: GPL-2.0-only
#
# RapidIO master port configuration
#
config RAPIDIO_TSI721
tristate "IDT Tsi721 PCI Express SRIO Controller support"
depends on RAPIDIO && PCIEPORTBUS
default "n"
help
Include support for IDT Tsi721 PCI Express Serial RapidIO controller.