diff options
Diffstat (limited to 'drivers/w1/w1.h')
| -rw-r--r-- | drivers/w1/w1.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h index 34ee01e008ad..00b84ab22808 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) { |