The driver provides support for Human Interface Devices (HID) on
Serial Peripheral Interface (SPI) buses on Apple Intel Macs
produced in 2015-2018.
The driver appears to work more stable after installation of Darwin OSI
in acpi(4) driver.
To install Darwin OSI insert following lines into /boot/loader.conf:
hw.acpi.install_interface="Darwin"
hw.acpi.remove_interface="Windows 2009, Windows 2012"
Reviewed by: wulf
Differential revision: https://reviews.freebsd.org/D39863
When spibus is attached as child of Intel SPI controller it scans all
ACPI nodes for "SPI Serial Bus Connection Resource Descriptor" described
in section 19.6.126 of ACPI specs.
If such a descriptor is found, SPI child is added to spibus, it's SPI
chip select, mode, clock, IRQ resource and ACPI handle are added to ivars.
Existing ACPI bus-hosted child is deleted afterwards.
Apple ACPI SPI extensions are supported.
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D41248
and remove non-present symbols that are now reported by kmod_syms.awk.
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32878
Having these compiled into the module causes the kobj method descriptors
to be resolved incorrectly (by the compile-time linker instead of the
kernel linker), which then leads to hours of frustrating debugging.
