Use bus_generic_detach instead of device_delete_children in detach

While here, check for errors from bus_generic_detach and move it to
the start of detach if necessary.

Differential Revision: https

Use bus_generic_detach instead of device_delete_children in detach

While here, check for errors from bus_generic_detach and move it to
the start of detach if necessary.

Differential Revision: https://reviews.freebsd.org/D47969

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Replace calls to bus_generic_attach with bus_attach_children

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D47675

Add atopcase, the Apple HID over SPI input driver

The driver provides support for Human Interface Devices (HID) on
Serial Peripheral Interface (SPI) buses on Apple Intel Macs
produced in 2015-2018.

Add atopcase, the Apple HID over SPI input driver

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

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