Re: [PATCH] i2c driver changes for 2.5.65

Greg KH
2003-03-20T22:26:01Z

ChangeSet 1.1143.1.16, 2003/03/20 12:07:55-08:00, greg@kroah.com

i2c: add initial driver model support for i2c drivers.

drivers/i2c/i2c-core.c | 22 ++++++++++++++++++++++
include/linux/i2c.h | 3 +++
2 files changed, 25 insertions(+)

diff -Nru a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
--- a/drivers/i2c/i2c-core.c Thu Mar 20 12:52:43 2003
+++ b/drivers/i2c/i2c-core.c Thu Mar 20 12:52:43 2003
@@ -53,6 +53,16 @@
#endif /* CONFIG_PROC_FS */

+int i2c_device_probe(struct device *dev)
+{
+ return -ENODEV;
+}
+
+int i2c_device_remove(struct device *dev)
+{
+ return 0;
+}
+
/* ---------------------------------------------------
* registering functions
* ---------------------------------------------------
@@ -204,6 +214,16 @@
drivers[i] = driver;

DEB(printk(KERN_DEBUG "i2c-core.o: driver %s registered.\n",driver->name));
+
+ /* add the driver to the list of i2c drivers in the driver core */
+ driver->driver.name = driver->name;
+ driver->driver.bus = &i2c_bus_type;
+ driver->driver.probe = i2c_device_probe;
+ driver->driver.remove = i2c_device_remove;
+
+ res = driver_register(&driver->driver);
+ if (res)
+ goto out_unlock;

/* now look for instances of driver on our adapters
*/
@@ -235,6 +255,8 @@
res = -ENODEV;
goto out_unlock;
}
+
+ driver_unregister(&driver->driver);

/* Have a look at each adapter, if clients of this driver are still
* attached. If so, detach them to be able to kill the driver
diff -Nru a/include/linux/i2c.h b/include/linux/i2c.h
--- a/include/linux/i2c.h Thu Mar 20 12:52:43 2003
+++ b/include/linux/i2c.h Thu Mar 20 12:52:43 2003
@@ -143,7 +143,10 @@
* with the device.
*/
int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
+
+ struct device_driver driver;
};
+#define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)

extern struct bus_type i2c_bus_type;