Initial commit

linux_driver/Kbuild

+obj-m := arduino_i2c.o

linux_driver/Makefile

+KSRC ?= /lib/modules/$(shell uname -r)/build
+
+all:
+	make -C $(KSRC) M=$(PWD) modules
+
+clean:
+	make -C $(KSRC) M=$(PWD) clean
+

linux_driver/arduino_i2c.c

+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+
+
+int
+ai2c_init(void) {
+	int i;
+
+	printk(KERN_INFO "Arduino I2C Keyboard Starting\n");
+	for (i = 20; i < 35; i++) {
+		int g;
+
+		g = gpio_to_irq(i);
+		printk(KERN_INFO "ai2c:  gpio[%d]:  irq = %d\n", i, g);
+	}
+
+	/*
+	 * A non 0 return means init_module failed; module can't be loaded.
+	 */
+	return 0;
+}
+
+void
+ai2c_shutdown(void) {
+	printk(KERN_INFO "Arduino I2C Keyboard Shutting Down\n");
+}
+
+module_init(ai2c_init);
+module_exit(ai2c_shutdown);
+
+MODULE_ALIAS("arduino_i2c");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Forest Godfrey <fgodfrey@bigw.org>");
+MODULE_DESCRIPTION("evdev driver for i2c keyboard based on Arduino");
+MODULE_VERSION("0.1");