int ds_write_byte(struct ds_device *dev, u8 byte){	int err;	struct ds_status st;	u8 rbyte;		err = ds_send_control(dev, COMM_BYTE_IO | COMM_IM | COMM_SPU, byte);	if (err)		return err;	err = ds_wait_status(dev, &st);	if (err)		return err;			err = ds_recv_data(dev, &rbyte, sizeof(rbyte));	if (err < 0)		return err;		ds_start_pulse(dev, PULLUP_PULSE_DURATION);	return !(byte == rbyte);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/8949d2aa05ddf5e9a31d738568a79915970cb38e/dscore.c/clean/drivers/w1/dscore.c