Cross Reference: /drivers/i2c/i2c-core.c

Lines Matching refs:msg
1373  * @count: How many bytes to write, must be less than 64k since msg.len is u16
1381 	struct i2c_msg msg;
1383 	msg.addr = client->addr;
1384 	msg.flags = client->flags & I2C_M_TEN;
1385 	msg.len = count;
1386 	msg.buf = (char *)buf;
1388 	ret = i2c_transfer(adap, &msg, 1);
1391 	 * If everything went ok (i.e. 1 msg transmitted), return #bytes
1402  * @count: How many bytes to read, must be less than 64k since msg.len is u16
1409 	struct i2c_msg msg;
1412 	msg.addr = client->addr;
1413 	msg.flags = client->flags & I2C_M_TEN;
1414 	msg.flags |= I2C_M_RD;
1415 	msg.len = count;
1416 	msg.buf = buf;
1418 	ret = i2c_transfer(adap, &msg, 1);
1421 	 * If everything went ok (i.e. 1 msg received), return #bytes received,
1656 static u8 i2c_smbus_msg_pec(u8 pec, struct i2c_msg *msg)
1659 	u8 addr = (msg->addr << 1) | !!(msg->flags & I2C_M_RD);
1663 	return i2c_smbus_pec(pec, msg->buf, msg->len);
1667 static inline void i2c_smbus_add_pec(struct i2c_msg *msg)
1669 	msg->buf[msg->len] = i2c_smbus_msg_pec(0, msg);
1670 	msg->len++;
1678 static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg)
1680 	u8 rpec = msg->buf[--msg->len];
1681 	cpec = i2c_smbus_msg_pec(cpec, msg);
1935 	struct i2c_msg msg[2] = { { addr, flags, 1, msgbuf0 },
1945 		msg[0].len = 0;
1947 		msg[0].flags = flags | (read_write == I2C_SMBUS_READ ?
1954 			msg[0].flags = I2C_M_RD | flags;
1960 			msg[1].len = 1;
1962 			msg[0].len = 2;
1968 			msg[1].len = 2;
1970 			msg[0].len = 3;
1978 		msg[0].len = 3;
1979 		msg[1].len = 2;
1985 			msg[1].flags |= I2C_M_RECV_LEN;
1986 			msg[1].len = 1; /* block length will be added by
1989 			msg[0].len = data->block[0] + 2;
1990 			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) {
1996 			for (i = 1; i < msg[0].len; i++)
2009 		msg[0].len = data->block[0] + 2;
2010 		for (i = 1; i < msg[0].len; i++)
2012 		msg[1].flags |= I2C_M_RECV_LEN;
2013 		msg[1].len = 1; /* block length will be added by
2018 			msg[1].len = data->block[0];
2020 			msg[0].len = data->block[0] + 1;
2021 			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) {
2040 		if (!(msg[0].flags & I2C_M_RD)) {
2042 				i2c_smbus_add_pec(&msg[0]);
2044 				partial_pec = i2c_smbus_msg_pec(0, &msg[0]);
2047 		if (msg[num-1].flags & I2C_M_RD)
2048 			msg[num-1].len++;
2051 	status = i2c_transfer(adapter, msg, num);
2056 	if (i && (msg[num-1].flags & I2C_M_RD)) {
2057 		status = i2c_smbus_check_pec(partial_pec, &msg[num-1]);