sharp-drm-driver-radxa-zero/README.md

Sharp Memory LCD Kernel Driver

DRM kernel driver for 2.7" 400x240 Sharp memory LCD panel.

Cleaning old drivers

The bbqX0kbd driver has been renamed to beepy-kbd, and sharp to sharp-drm.

Driver packages will detect if one of these old modules is installed and cancel installation of the package.

Remove the following files:

• /lib/modules/<uname>/extra/bbqX0kbd.ko*
• /lib/modules/<uname>/extra/sharp.ko*
• /boot/overlays/i2c-bbqX0kbd.dtbo
• /boot/overlays/sharp.dtbo

Rebuild the module list:

• depmod -a

Remove the following lines from /boot/config.txt:

• dtoverlay=bbqX0kbd,irq_pin=4
• dtoverlay=sharp

Remove the following lines from /etc/modules:

• bbqX0kbd
• sharp

Installation

Install the Linux kernel headers

sudo apt-get install raspberrypi-kernel-headers

To build, install, and enable the kernel module:

make
sudo make install

To remove:

sudo make uninstall

Original fbdev module readme with pinouts and build instructions

References

Original SPI and GPIO kernel driver at:

https://github.com/w4ilun/Sharp-Memory-LCD-Kernel-Driver

Sharp datasheet:

https://www.sharpsde.com/fileadmin/products/Displays/2016_SDE_App_Note_for_Memory_LCD_programming_V1.3.pdf