Magisk / KernelPatch / APatch - Android Generic BT Keyboard Fix

Description

The underlying issue is that some cheap keyboards report their USB Vendor ID as 0x04E8 and Product ID as 0x7021, which is the same as a Samsung Wireless Keyboard. This causes the Samsung HID driver to claim the device, which doesn't support the keyboard properly.

We implement both a KernelPatch / APatch module, as well as a Magisk module. The former is a more comprehensive fix that fully patches out the driver inside the Linux Kernel. The latter is a Magisk module that ignores special drivers while connecting to the device.

NOTE: The KernelPatch / APatch module will only work with APatch. The Magisk module will work for both.

APatch Installation

Install the patch by copying the ./build/sam_hid_kbd_rem.kpm file to your device, opening APatch, and loading/installing the module.

Magisk Installation

Install the patch by copying the ./build/MagiskSamsungKBDOverride.zip file to your device, opening APatch or Magisk, and installing the module.

Kernel Patch

You can also patch the kernel directly by applying the provided patch file kernel.patch. At the time of writing this, the patch was applied to the LineageOS/android_kernel_samsung_sm8250 at hash 8acbe9760ef02f0d044c0f0ec1bb469fa383fb07.