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README.md
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This is eventually gonna be a kernel module capable of sending text to a connected LCD display. This is eventually gonna be a kernel module capable of sending text to a connected LCD display.
The communication would be happening via device file `/dev/lcd` The communication would be happening via device file `/dev/lcd`
Installing the module creates the device `/dev/lcd` used for sending text to the screen. The LCD display
is turned on by opening the file for writing. A string of characters has to be ended with `\n` in order to
appear on the display.
This is the circuit I used to drive my screen:
![Circuit Diagram](./img/circuit.svg)
This is also the default pin layout used by the driver. If you want to use a different pin layout, you can change the driver's config as such:
sudo ./install.sh pin_name=pin_number ...
where `pin_name` is one of the following:
* `pin_power`
* `pin_rs`
* `pin_rw`
* `pin_enable`
* `pin_data`
and `pin_number` is the GPIO pin number. For `pin_data` you need to supply a comma-separated list of four numbers.
## How to build ## How to build
Good luck. Good luck.

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img/circuit.svg Normal file
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