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authorJeff Garzik <jgarzik@pretzel.yyz.us>2005-06-22 21:50:57 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-06-22 21:50:57 -0400
commita5324343955997d1439f26518ddac567cd5d134b (patch)
treef43558389c41e3a0f076c4ee55d77c4aa1561779 /drivers/i2c/chips/pcf8574.c
parent8199d3a79c224bbe5943fa08684e1f93a17881b0 (diff)
parenta4936044001694f033fe4ea94d6034d51a6b465c (diff)
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'drivers/i2c/chips/pcf8574.c')
-rw-r--r--drivers/i2c/chips/pcf8574.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c
index 48b4e22eaff..cfcf6465408 100644
--- a/drivers/i2c/chips/pcf8574.c
+++ b/drivers/i2c/chips/pcf8574.c
@@ -57,7 +57,7 @@ SENSORS_INSMOD_2(pcf8574, pcf8574a);
struct pcf8574_data {
struct i2c_client client;
- u8 read, write; /* Register values */
+ u8 write; /* Remember last written value */
};
static int pcf8574_attach_adapter(struct i2c_adapter *adapter);
@@ -76,23 +76,21 @@ static struct i2c_driver pcf8574_driver = {
};
/* following are the sysfs callback functions */
-static ssize_t show_read(struct device *dev, char *buf)
+static ssize_t show_read(struct device *dev, struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
- struct pcf8574_data *data = i2c_get_clientdata(client);
- data->read = i2c_smbus_read_byte(client);
- return sprintf(buf, "%u\n", data->read);
+ return sprintf(buf, "%u\n", i2c_smbus_read_byte(client));
}
static DEVICE_ATTR(read, S_IRUGO, show_read, NULL);
-static ssize_t show_write(struct device *dev, char *buf)
+static ssize_t show_write(struct device *dev, struct device_attribute *attr, char *buf)
{
struct pcf8574_data *data = i2c_get_clientdata(to_i2c_client(dev));
return sprintf(buf, "%u\n", data->write);
}
-static ssize_t set_write(struct device *dev, const char *buf,
+static ssize_t set_write(struct device *dev, struct device_attribute *attr, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);