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authorIngo Molnar <mingo@elte.hu>2009-09-07 08:19:51 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-07 08:19:51 +0200
commita1922ed661ab2c1637d0b10cde933bd9cd33d965 (patch)
tree0f1777542b385ebefd30b3586d830fd8ed6fda5b /drivers/w1/slaves/w1_ds2760.c
parent75e33751ca8bbb72dd6f1a74d2810ddc8cbe4bdf (diff)
parentd28daf923ac5e4a0d7cecebae56f3e339189366b (diff)
Merge branch 'tracing/core' into tracing/hw-breakpoints
Conflicts: arch/Kconfig kernel/trace/trace.h Merge reason: resolve the conflicts, plus adopt to the new ring-buffer APIs. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/w1/slaves/w1_ds2760.c')
-rw-r--r--drivers/w1/slaves/w1_ds2760.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
index 1f09d4e4144c..59f708efe25f 100644
--- a/drivers/w1/slaves/w1_ds2760.c
+++ b/drivers/w1/slaves/w1_ds2760.c
@@ -68,6 +68,34 @@ int w1_ds2760_write(struct device *dev, char *buf, int addr, size_t count)
return w1_ds2760_io(dev, buf, addr, count, 1);
}
+static int w1_ds2760_eeprom_cmd(struct device *dev, int addr, int cmd)
+{
+ struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
+
+ if (!dev)
+ return -EINVAL;
+
+ mutex_lock(&sl->master->mutex);
+
+ if (w1_reset_select_slave(sl) == 0) {
+ w1_write_8(sl->master, cmd);
+ w1_write_8(sl->master, addr);
+ }
+
+ mutex_unlock(&sl->master->mutex);
+ return 0;
+}
+
+int w1_ds2760_store_eeprom(struct device *dev, int addr)
+{
+ return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_COPY_DATA);
+}
+
+int w1_ds2760_recall_eeprom(struct device *dev, int addr)
+{
+ return w1_ds2760_eeprom_cmd(dev, addr, W1_DS2760_RECALL_DATA);
+}
+
static ssize_t w1_ds2760_read_bin(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
@@ -200,6 +228,8 @@ static void __exit w1_ds2760_exit(void)
EXPORT_SYMBOL(w1_ds2760_read);
EXPORT_SYMBOL(w1_ds2760_write);
+EXPORT_SYMBOL(w1_ds2760_store_eeprom);
+EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
module_init(w1_ds2760_init);
module_exit(w1_ds2760_exit);