#include "main.h"

struct i2c_client * i2c_client;

int lork_probe(struct i2c_client * client) {
	int err = driver_create_file(&lork_driver.driver, &drv_attr);
	if (err) return -EINVAL;

	i2c_client = client; // this is a garbage solution
	printk(KERN_INFO "%s(i2c addr %02x)\n", __PRETTY_FUNCTION__, client->addr);

	return 0;
}

void lork_remove(struct i2c_client * client) {
	driver_remove_file(&lork_driver.driver, &drv_attr);

	printk(KERN_INFO "%s()\n", __PRETTY_FUNCTION__);
	return;
}

ssize_t drv_attr_show(struct device_driver* drv, char* buf) {
	char recv[3];
	int ret = i2c_master_recv(i2c_client, recv, sizeof(recv));
	if (ret < 0) return 0; // error
	return sprintf(buf, "%.*s\n", ret, recv);
}

module_i2c_driver(lork_driver);
MODULE_LICENSE("Dual MIT/GPL");