hid-apple-dkms

.SRCINFO

pkgbase = hid-apple-dkms
	pkgdesc = hid_apple.ko patched
	pkgver = 4.15.5
	pkgrel = 1
	url = https://www.kernel.org/
	arch = x86_64
	license = GPL2
	depends = dkms
	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.15.tar.xz
	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.15.tar.sign
	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.15.5.xz
	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.15.5.sign
	source = hid-apple-scancodes.patch
	source = Makefile
	source = dkms.conf
	validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886
	validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E
	sha256sums = 5a26478906d5005f4f809402e981518d2b8844949199f60c4b6e1f986ca2a769
	sha256sums = SKIP
	sha256sums = b5dc7021bd0c08e4a58b59035f9b757ce6909b46067950ac56d2ad68c1b69dd1
	sha256sums = SKIP
	sha256sums = aa7d48ab459a3cd961846d34a78e0d2e2b943ca45212f3104532973822c2f862
	sha256sums = 9e5ce2c5e75673f72753e6f981d07933464bd77ab0acb93266f028d08b2b5ef8
	sha256sums = d03a6dbe8ebe1939b0ea7950006c92fdf645821f67563b8377efd55bdd925d9f

pkgname = hid-apple-dkms

dkms.conf

PACKAGE_NAME="@_PKGBASE@"
PACKAGE_VERSION="@PKGVER@"
AUTOINSTALL="yes"

BUILT_MODULE_NAME[0]="hid-apple"
MAKE[0]="make KDIR=/usr/lib/modules/$kernelver/build"
DEST_MODULE_LOCATION[0]="/updates/drivers/hid"

hid-apple-scancodes.patch

--- a/drivers/hid/hid-apple.c	2017-03-04 01:34:38.655588991 -0500
+++ b/drivers/hid/hid-apple.c	2017-03-04 01:47:08.082599141 -0500
@@ -177,6 +177,15 @@
 	return NULL;
 }
 
+static void input_event_with_scancode(struct input_dev *input,
+		__u8 type, __u16 code, unsigned int hid, __s32 value)
+{
+	if (type == EV_KEY &&
+	    (!test_bit(code, input->key)) == value)
+		input_event(input, EV_MSC, MSC_SCAN, hid);
+	input_event(input, type, code, value);
+}
+
 static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 		struct hid_usage *usage, __s32 value)
 {
@@ -185,7 +194,8 @@
 
 	if (usage->code == KEY_FN) {
 		asc->fn_on = !!value;
-		input_event(input, usage->type, usage->code, value);
+		input_event_with_scancode(input, usage->type, usage->code,
+				usage->hid, value);
 		return 1;
 	}
 
@@ -217,8 +227,8 @@
 				else
 					clear_bit(usage->code, asc->pressed_fn);
 
-				input_event(input, usage->type, trans->to,
-						value);
+				input_event_with_scancode(input, usage->type,
+						trans->to, usage->hid, value);
 
 				return 1;
 			}
@@ -238,8 +248,8 @@
 					clear_bit(usage->code,
 							asc->pressed_numlock);
 
-				input_event(input, usage->type, trans->to,
-						value);
+				input_event_with_scancode(input, usage->type,
+						trans->to, usage->hid, value);
 			}
 
 			return 1;
@@ -250,7 +260,8 @@
 		if (asc->quirks & APPLE_ISO_KEYBOARD) {
 			trans = apple_find_translation(apple_iso_keyboard, usage->code);
 			if (trans) {
-				input_event(input, usage->type, trans->to, value);
+				input_event_with_scancode(input, usage->type,
+						trans->to, usage->hid, value);
 				return 1;
 			}
 		}
@@ -259,7 +270,8 @@
 	if (swap_opt_cmd) {
 		trans = apple_find_translation(swapped_option_cmd_keys, usage->code);
 		if (trans) {
-			input_event(input, usage->type, trans->to, value);
+			input_event_with_scancode(input, usage->type,
+					trans->to, usage->hid, value);
 			return 1;
 		}
 	}

Makefile

obj-m := hid-apple.o

KVERSION := $(KERNELRELEASE)
ifeq ($(origin KERNELRELEASE), undefined)
KVERSION := $(shell uname -r)
endif
KDIR := /lib/modules/$(KVERSION)/build
PWD := $(shell pwd)

all:
	$(MAKE) -C $(KDIR) M=$(PWD) modules

clean:
	$(MAKE) -C $(KDIR) M=$(PWD) clean

install:
	$(MAKE) -C $(KDIR) M=$(PWD) modules_install

PKGBUILD

_pkgbase=hid-apple
pkgname=(${_pkgbase}-dkms)
_srcname=linux-4.15
pkgver=4.15.5
pkgrel=1
pkgdesc="hid_apple.ko patched"
arch=('x86_64')
url="https://www.kernel.org/"
license=('GPL2')
groups=('')
depends=('dkms')
optdepends=()
source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
        "https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.sign"
        "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.xz"
        "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.sign"
        'hid-apple-scancodes.patch'
        'Makefile'
        'dkms.conf')
sha256sums=('5a26478906d5005f4f809402e981518d2b8844949199f60c4b6e1f986ca2a769'
            'SKIP'
            'b5dc7021bd0c08e4a58b59035f9b757ce6909b46067950ac56d2ad68c1b69dd1'
            'SKIP'
            'aa7d48ab459a3cd961846d34a78e0d2e2b943ca45212f3104532973822c2f862'
            '9e5ce2c5e75673f72753e6f981d07933464bd77ab0acb93266f028d08b2b5ef8'
            'd03a6dbe8ebe1939b0ea7950006c92fdf645821f67563b8377efd55bdd925d9f')
validpgpkeys=('ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
              '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
             )

prepare() {
    cd "${srcdir}/${_srcname}"
    patch -Np1 -i "${srcdir}/patch-${pkgver}"
    patch -Np1 -i "${srcdir}/hid-apple-scancodes.patch"
}

package() {
    cd "${srcdir}"

    install -dm755 "${pkgdir}"/usr/src/${_pkgbase}-${pkgver}
    install -Dm644 -t "${pkgdir}/usr/src/${_pkgbase}-${pkgver}" \
        "${_srcname}/drivers/hid/hid-ids.h" \
        "${_srcname}/drivers/hid/hid-apple.c" \
        Makefile dkms.conf

    sed -e "s/@_PKGBASE@/${_pkgbase}/" \
        -e "s/@PKGVER@/${pkgver}/" \
        -i "${pkgdir}"/usr/src/${_pkgbase}-${pkgver}/dkms.conf
}