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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-22 02:44:56 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-08-22 22:05:42 +0400
commitb8a9f44fea2b97f34d95f983ecf5f1072632b421 (patch)
tree1dfa48227bd1c471fe741abfbe974c5e3508c28b /drivers/w1/slaves
parent36c27a655a531f16b5567066600f0ea7fcb973b4 (diff)
downloadlinux-b8a9f44fea2b97f34d95f983ecf5f1072632b421.tar.xz
w1: slaves: w1_therm: convert to use w1_family_ops.groups
This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: David Stevenson <david@avoncliff.com> Cc: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Cc: Michael Arndt <michael@scriptkiller.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/w1/slaves')
-rw-r--r--drivers/w1/slaves/w1_therm.c24
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index 8978360bd387..8b5ff33f72cf 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -59,25 +59,19 @@ static int w1_strong_pullup = 1;
module_param_named(strong_pullup, w1_strong_pullup, int, 0);
-static ssize_t w1_therm_read(struct device *device,
+static ssize_t w1_slave_show(struct device *device,
struct device_attribute *attr, char *buf);
-static struct device_attribute w1_therm_attr =
- __ATTR(w1_slave, S_IRUGO, w1_therm_read, NULL);
+static DEVICE_ATTR_RO(w1_slave);
-static int w1_therm_add_slave(struct w1_slave *sl)
-{
- return device_create_file(&sl->dev, &w1_therm_attr);
-}
-
-static void w1_therm_remove_slave(struct w1_slave *sl)
-{
- device_remove_file(&sl->dev, &w1_therm_attr);
-}
+static struct attribute *w1_therm_attrs[] = {
+ &dev_attr_w1_slave.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(w1_therm);
static struct w1_family_ops w1_therm_fops = {
- .add_slave = w1_therm_add_slave,
- .remove_slave = w1_therm_remove_slave,
+ .groups = w1_therm_groups,
};
static struct w1_family w1_therm_family_DS18S20 = {
@@ -178,7 +172,7 @@ static inline int w1_convert_temp(u8 rom[9], u8 fid)
}
-static ssize_t w1_therm_read(struct device *device,
+static ssize_t w1_slave_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct w1_slave *sl = dev_to_w1_slave(device);