These source codes implementing Linux driver for SSD1306 Organic-LED display. In this phase of work resolution of the display is hard-coded and equal 128 x 32 pixels.
These module will have two main features:
Character device operations (mainly for write operation).
- Driver use default kernel font VGA8x8
- Add +1 pixel (by default) free space between characters what give 14 character per line
- Theoretical maximum display capacity is 56 characters. In practice, some new lines can be added, which will reduce capacity. (Currently in development stage)
Send commands using ioctrl
- (Not implemented yet)
You can add this repository to you kernel distribution. Just put it to:
<your-linux>/drivers
and modify Kconfig in the same directory adding this line:
source "drivers/counter/Kconfig"
+source "drivers/ssd1306/Kconfig"
+
endmenu
After that, you should see SSD1306 module in menuconfig.
You can also built it as separate module:
make CONFIG_SSD1306=m KERNELDIR=<path-to-your-kernel-distribution>
- Inform the kernel about the device connected to I2C bus:
echo ssd1306 0x3C > /sys/class/i2c-adapter/i2c-<number>/new_device- Install the module
insmod ssd1306.ko- Try to display some message on the display
echo "Hello World!" > /dev/ssd1306