diff options
Diffstat (limited to 'include/linux/i2c.h')
| -rw-r--r-- | include/linux/i2c.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index fffdc270ca18..c1f60a345db7 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -601,6 +601,20 @@ i2c_lock_bus(struct i2c_adapter *adapter, unsigned int flags) } /** + * i2c_trylock_bus - Try to get exclusive access to an I2C bus segment + * @adapter: Target I2C bus segment + * @flags: I2C_LOCK_ROOT_ADAPTER tries to locks the root i2c adapter, + * I2C_LOCK_SEGMENT tries to lock only this branch in the adapter tree + * + * Return: true if the I2C bus segment is locked, false otherwise + */ +static inline int +i2c_trylock_bus(struct i2c_adapter *adapter, unsigned int flags) +{ + return adapter->trylock_bus(adapter, flags); +} + +/** * i2c_unlock_bus - Release exclusive access to an I2C bus segment * @adapter: Target I2C bus segment * @flags: I2C_LOCK_ROOT_ADAPTER unlocks the root i2c adapter, I2C_LOCK_SEGMENT |