[RFC PATCH 2/3] i2c: document struct i2c_adapter

[Octavian Purdila]

Document the i2c_adapter fields that must be initialized before
calling i2c_add_adapter().

Signed-off-by: Octavian Purdila <octavian.purdila@xxxxxxxxx>
---
 include/linux/i2c.h | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index a95efeb..36041e2 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -418,9 +418,19 @@ int i2c_recover_bus(struct i2c_adapter *adap);
 int i2c_generic_gpio_recovery(struct i2c_adapter *adap);
 int i2c_generic_scl_recovery(struct i2c_adapter *adap);
 
-/*
- * i2c_adapter is the structure used to identify a physical i2c bus along
- * with the access algorithms necessary to access it.
+/**
+ * struct i2c_adapter - represents an I2C physical bus
+ *
+ * The following members must be set by the adapter driver before
+ * calling i2c_add_adapter():
+ *
+ * @owner: the module owner, usually THIS_MODULE
+ * @class: bitmask of I2C_CLASS_*
+ * @algo: see struct i2c_algorithm
+ * @dev.parent: set this to the struct device of the driver (e.g. pci_dev->dev,
+ *	usb->interface->dev, platform_device->dev etc.)
+ * @name: name of this i2c bus
+ * @bus_recovery_info: see struct i2c_bus_recovery_info. Optional.
  */
 struct i2c_adapter {
 	struct module *owner;
-- 
1.9.1

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