compile-module

#!/bin/bash

# Run this script as root to compile the USB HID kernel module that includes
# the patch for Mac OS X pre-boot compatibility.

# Exit build script on first failure.
set -e

# Echo commands to stdout.
set -x

# Exit on unset variable.
set -u

# Clone repo.
SOURCE_DIR="$(mktemp --directory)"
pushd "${SOURCE_DIR}"
git clone --depth=1 --branch rpi-5.10.y https://github.com/raspberrypi/linux .

# Apply patch.
curl https://github.com/raspberrypi/linux/commit/d7428bc26fc767942c38d74b80299bcd4f01e7cb.patch \
  | git apply

# Generate config.
KERNEL=kernel7l
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2711_defconfig

# Build module.
OUTPUT_DIR="drivers/usb/gadget/function"
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- modules_prepare
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- M="${OUTPUT_DIR}"

popd
cp "${SOURCE_DIR}/${OUTPUT_DIR}/usb_f_hid.ko" bin/