For Chipset 0x0c45:0x7603
The kernel reports the chipset as Microdia
Written for the Perixx PX-1800 USB Keyboard, also works for other keyboards with the same chipset (e.g., Periboard 506II)
This software is forked from Colin Svingen's Azio L70 USB Keyboard driver that can be found at https://bitbucket.org/Swoogan/aziokbd
NOTE: Makefile and instructions have been tested on Debian and Arch Linux.
First, make sure to have all the required packages to download and build the module:
sudo apt-get install git build-essential linux-headers-generic dkms
Then, download the sources:
git clone https://github.com/lolo101/px1800kbd.git
cd into the sources' directory:
cd px1800kbd
At last, build the module. It is recommended to use DKMS to install the module:
sudo ./install.sh dkms
But you may also want to run a manual installation:
sudo ./install.sh
Check if the usbhid driver is in the initramfs:
lsinitcpio /boot/initramfs-linux.img | grep usbhid
If the command returns something like:
usr/lib/modules/<kernel version>/kernel/usbhid.ko
This means the usbhid driver is loaded early, before the file system is mounted.
Therefore, the usbhid configuration in /etc/modprobe.d/usbhid.conf cannot be read.
The solution is to add that configuration to the initramfs:
WARNING: Be sure to understand what you are doing here. Corrupting you initramfs can prevent you system from booting
mkinitcpio -p linux
If properly configured, mkinitcpio should trigger the modconf hook which would automatically add the usbhid configuration into the initramfs.