void device_I2C_read(unsigned char add, unsigned char *value, unsigned short len)
{
	// I2C read
	if(ds4_i2c_client == NULL) {
		printk("[Touch] ds4_i2c_client is NULL\n");
		return;
	} else {
		if(synaptics_ts_read(ds4_i2c_client, add, len, value) < 0) return;
	}
}
static int readRMI(struct i2c_client *client, u8 uRmiAddress, u8 *data, unsigned int length)
{
	return synaptics_ts_read(client, uRmiAddress, length, data);
}