[PATCH] i2c: fix wrong comment and symbol export for i2c_add_numbered_adapter()
w.sang at pengutronix.de
Tue Aug 31 10:33:18 EDT 2010
Signed-off-by: Wolfram Sang <w.sang at pengutronix.de>
Can you please check this patch?
drivers/i2c/i2c.c | 26 ++++++++++++--------------
1 files changed, 12 insertions(+), 14 deletions(-)
diff --git a/drivers/i2c/i2c.c b/drivers/i2c/i2c.c
index 87360f3..5df0d30 100644
@@ -344,21 +344,19 @@ struct i2c_adapter *i2c_get_adapter(int busnum)
- * i2c_register_master - register I2C master controller
+ * i2c_add_numbered_adapter - declare i2c adapter, use static bus number
+ * @adapter: the adapter to register (with adap->nr initialized)
- * @param master initialized master, originally from i2c_alloc_master()
- * I2C master controllers connect to their drivers using some non-I2C
- * bus, such as the platform bus. The final stage of probe() in that
- * code includes calling i2c_register_master() to hook up to this I2C
- * bus glue.
- * I2C controllers use board specific (often SOC specific) bus
- * numbers, and board-specific addressing for I2C devices combines
- * those numbers with chip select numbers. Since I2C does not directly
- * support dynamic device identification, boards need configuration
- * tables telling which chip is at which address.
+ * This routine is used to declare an I2C adapter when its bus number
+ * matters. For example, use it for I2C adapters from system-on-chip CPUs,
+ * or otherwise built in to the system's mainboard, and where i2c_board_info
+ * is used to properly configure I2C devices.
+ * When this returns zero, the specified adapter became available for
+ * clients using the bus number provided in adap->nr. Also, the table
+ * of I2C devices pre-declared using i2c_register_board_info() is scanned,
+ * and the appropriate driver model device nodes are created. Otherwise, a
+ * negative errno value is returned.
int i2c_add_numbered_adapter(struct i2c_adapter *adapter)
@@ -372,4 +370,4 @@ int i2c_add_numbered_adapter(struct i2c_adapter *adapter)
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