net/mdio/mdio-i2c.c

37 	struct i2c_msg msgs[2];
52 	msgs[0].addr = bus_addr;
53 	msgs[0].flags = 0;
54 	msgs[0].len = p - addr;
55 	msgs[0].buf = addr;
56 	msgs[1].addr = bus_addr;
57 	msgs[1].flags = I2C_M_RD;
58 	msgs[1].len = sizeof(data);
59 	msgs[1].buf = data;
61 	ret = i2c_transfer(i2c, msgs, ARRAY_SIZE(msgs));
62 	if (ret != ARRAY_SIZE(msgs))
133 static int __i2c_transfer_err(struct i2c_adapter *i2c, struct i2c_msg *msgs,
138 	ret = __i2c_transfer(i2c, msgs, num);
150 	struct i2c_msg msgs[2];
153 	msgs[0].addr = bus_addr;
154 	msgs[0].flags = 0;
155 	msgs[0].len = 1;
156 	msgs[0].buf = &addr;
158 	msgs[1].addr = bus_addr;
159 	msgs[1].flags = I2C_M_RD;
160 	msgs[1].len = 1;
161 	msgs[1].buf = page;
163 	return __i2c_transfer_err(i2c, msgs, 2);
192  * in one call to i2c_transfer (by constructing msgs array in such a way), but
197 				 struct i2c_msg *msgs, int num)
205 	ret = __i2c_rollball_get_page(i2c, msgs->addr, &saved_page);
210 	ret = __i2c_rollball_set_page(i2c, msgs->addr, SFP_PAGE_ROLLBALL_MDIO);
215 	ret = __i2c_transfer_err(i2c, msgs, num);
220 	ret = __i2c_rollball_set_page(i2c, msgs->addr, saved_page);
232 	struct i2c_msg msgs[2];
241 	msgs[0].addr = bus_addr;
242 	msgs[0].flags = 0;
243 	msgs[0].len = 1;
244 	msgs[0].buf = &cmd_addr;
246 	msgs[1].addr = bus_addr;
247 	msgs[1].flags = I2C_M_RD;
248 	msgs[1].len = len;
249 	msgs[1].buf = res;
258 		ret = i2c_transfer_rollball(i2c, msgs, ARRAY_SIZE(msgs));
275 	struct i2c_msg msgs[2];
281 	msgs[0].addr = bus_addr;
282 	msgs[0].flags = 0;
283 	msgs[0].len = len;
284 	msgs[0].buf = data;
286 	msgs[1].addr = bus_addr;
287 	msgs[1].flags = 0;
288 	msgs[1].len = sizeof(cmdbuf);
289 	msgs[1].buf = cmdbuf;
291 	return i2c_transfer_rollball(i2c, msgs, ARRAY_SIZE(msgs));