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-rw-r--r--drivers/w1/w1.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
index 34ee01e008a..00b84ab2280 100644
--- a/drivers/w1/w1.h
+++ b/drivers/w1/w1.h
@@ -142,6 +142,12 @@ struct w1_bus_master
*/
u8 (*reset_bus)(void *);
+ /**
+ * Put out a strong pull-up pulse of the specified duration.
+ * @return -1=Error, 0=completed
+ */
+ u8 (*set_pullup)(void *, int);
+
/** Really nice hardware can handles the different types of ROM search
* w1_master* is passed to the slave found callback.
*/
@@ -167,6 +173,11 @@ struct w1_master
void *priv;
int priv_size;
+ /** 5V strong pullup enabled flag, 1 enabled, zero disabled. */
+ int enable_pullup;
+ /** 5V strong pullup duration in milliseconds, zero disabled. */
+ int pullup_duration;
+
struct task_struct *thread;
struct mutex mutex;
@@ -201,6 +212,7 @@ u8 w1_calc_crc8(u8 *, int);
void w1_write_block(struct w1_master *, const u8 *, int);
u8 w1_read_block(struct w1_master *, u8 *, int);
int w1_reset_select_slave(struct w1_slave *sl);
+void w1_next_pullup(struct w1_master *, int);
static inline struct w1_slave* dev_to_w1_slave(struct device *dev)
{