GM12U320 driver for USB projectors

modulename: gm12u320.ko

configname: CONFIG_DRM_GM12U320

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>GM12U320 driver for USB projectors
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This is a KMS driver for projectors which use the GM12U320 chipset
for video transfer over USB2/3, such as the Acer C120 mini projector.

source code:
drivers/gpu/drm//tiny/gm12u320.c