diff options
Diffstat (limited to 'include/linux/i2c.h')
| -rw-r--r-- | include/linux/i2c.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index a6c652e..fd8fcf0 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -208,6 +208,7 @@ struct i2c_client { struct i2c_driver *driver; /* and our access routines */ struct device dev; /* the device structure */ int irq; /* irq issued by device */ + bool ext_master; /* determine if the dev has a master outside mpu */ struct list_head detected; }; #define to_i2c_client(d) container_of(d, struct i2c_client, dev) @@ -239,6 +240,7 @@ static inline void i2c_set_clientdata(struct i2c_client *dev, void *data) * @archdata: copied into i2c_client.dev.archdata * @of_node: pointer to OpenFirmware device node * @irq: stored in i2c_client.irq + * @ext_master: determine if the dev has a master outside mpu * * I2C doesn't actually support hardware probing, although controllers and * devices may be able to use I2C_SMBUS_QUICK to tell whether or not there's @@ -259,6 +261,7 @@ struct i2c_board_info { struct dev_archdata *archdata; struct device_node *of_node; int irq; + bool ext_master; }; /** @@ -370,6 +373,9 @@ struct i2c_adapter { struct mutex userspace_clients_lock; struct list_head userspace_clients; + + struct mutex ext_clients_lock; /* Lock for external clients list */ + struct list_head ext_clients; /* Clients with master from external proc */ }; #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) @@ -429,6 +435,7 @@ void i2c_unlock_adapter(struct i2c_adapter *); #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) extern int i2c_add_adapter(struct i2c_adapter *); extern int i2c_del_adapter(struct i2c_adapter *); +extern void i2c_detect_ext_master(struct i2c_adapter *); extern int i2c_add_numbered_adapter(struct i2c_adapter *); extern int i2c_register_driver(struct module *, struct i2c_driver *); |