Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

sys: Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Fix some modules to export more used symbols

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
Differ

Fix some modules to export more used symbols

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

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hid: Import HID transport method definitions and helper functions.

Create an abstract HID interface that provides hardware independent
access to HID capabilities and functions through the device tre

hid: Import HID transport method definitions and helper functions.

Create an abstract HID interface that provides hardware independent
access to HID capabilities and functions through the device tree.

hid_if.m resembles existing USBHID KPI and consist of next methods:

HID method USBHID variant
-----------------------------------------------------------------------
hid_intr_setup usbd_transfer_setup (INTERRUPT IN xfer)
hid_intr_unsetup usbd_transfer_unsetup (INTERRUPT IN xfer)
hid_intr_start usbd_transfer_start (INTERRUPT IN xfer)
hid_intr_stop usbd_transfer_drain (INTERRUPT IN xfer)
hid_intr_poll usbd_transfer_poll (INTERRUPT IN xfer)

hid_get_rdesc usbd_req_get_report_descriptor
hid_read No direct analog. Not intended for common use.
hid_write uhid(4) write()
hid_get_report usbd_req_get_report
hid_set_report usbd_req_set_report
hid_set_idle usbd_req_set_idle
hid_set_protocol usbd_req_set_protocol

This change is part of D27888

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hid: Import functions and constants required by new subsystem

This does an import of quirk stubs, debugging macros from USB code and
numerous usage constants used by dependent drivers.

Besides, thi

hid: Import functions and constants required by new subsystem

This does an import of quirk stubs, debugging macros from USB code and
numerous usage constants used by dependent drivers.

Besides, this change renames some functions to get a better matching
with userland library and NetBSD/OpenBSD HID code. Namely:

- Old hid_report_size() renamed to hid_report_size_max()
- New hid_report_size() calculates size of given report rather than
maximum size of all reports.
- hid_get_data_unsigned() renamed to hid_get_udata()
- hid_put_data_unsigned() renamed to hid_put_udata()

Compat shim functions are provided in usbhid.h to make possible compile
of legacy code unmodified after this change.

Reviewed by: manu, hselasky
Differential revision: https://reviews.freebsd.org/D27887

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Factor-out hardware-independent part of USB HID support to new module

It will be used by the upcoming HID-over-i2C implementation. Should be
no-op, except hid.ko module dependency is to be added to

Factor-out hardware-independent part of USB HID support to new module

It will be used by the upcoming HID-over-i2C implementation. Should be
no-op, except hid.ko module dependency is to be added to affected drivers.

Reviewed by: hselasky, manu
Differential revision: https://reviews.freebsd.org/D27867

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