41 	struct i2c_client *client;  member
51 	i2c_smbus_write_byte(lp->client, 240);  in read_state()
52 	x = 0xF & (~(i2c_smbus_read_byte(lp->client) >> 4));  in read_state()
54 	i2c_smbus_write_byte(lp->client, 15);  in read_state()
55 	y = 0xF & (~i2c_smbus_read_byte(lp->client));  in read_state()
84 static int pcf8574_kp_probe(struct i2c_client *client, const struct i2c_device_id *id)  in pcf8574_kp_probe()  argument
90 	if (i2c_smbus_write_byte(client, 240) < 0) {  in pcf8574_kp_probe()
91 		dev_err(&client->dev, "probe: write fail\n");  in pcf8574_kp_probe()
101 		dev_err(&client->dev, "Can't allocate input device\n");  in pcf8574_kp_probe()
107 	lp->client = client;  in pcf8574_kp_probe()
134 	ret = request_threaded_irq(client->irq, NULL, pcf8574_kp_irq_handler,  in pcf8574_kp_probe()
138 		dev_err(&client->dev, "IRQ %d is not free\n", client->irq);  in pcf8574_kp_probe()
144 		dev_err(&client->dev, "input_register_device() failed\n");  in pcf8574_kp_probe()
148 	i2c_set_clientdata(client, lp);  in pcf8574_kp_probe()
152 	free_irq(client->irq, lp);  in pcf8574_kp_probe()
161 static int pcf8574_kp_remove(struct i2c_client *client)  in pcf8574_kp_remove()  argument
163 	struct kp_data *lp = i2c_get_clientdata(client);  in pcf8574_kp_remove()
165 	free_irq(client->irq, lp);  in pcf8574_kp_remove()
176 	struct i2c_client *client = to_i2c_client(dev);  in pcf8574_kp_resume()  local
178 	enable_irq(client->irq);  in pcf8574_kp_resume()
185 	struct i2c_client *client = to_i2c_client(dev);  in pcf8574_kp_suspend()  local
187 	disable_irq(client->irq);  in pcf8574_kp_suspend()