Commit 500d5250 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman

i2c: add i2c sysfs bus support.

parent 1464d8c7
...@@ -598,10 +598,37 @@ static void __exit i2cproc_cleanup(void) ...@@ -598,10 +598,37 @@ static void __exit i2cproc_cleanup(void)
{ {
remove_proc_entry("i2c",proc_bus); remove_proc_entry("i2c",proc_bus);
} }
#else
static int __init i2cproc_init(void) { return 0; }
static void __exit i2cproc_cleanup(void) { }
#endif /* CONFIG_PROC_FS */
/* match always succeeds, as we want the probe() to tell if we really accept this match */
static int i2c_device_match(struct device *dev, struct device_driver *drv)
{
return 1;
}
struct bus_type i2c_bus_type = {
.name = "i2c",
.match = i2c_device_match,
};
static int __init i2c_init(void)
{
bus_register(&i2c_bus_type);
return i2cproc_init();
}
static void __exit i2c_exit(void)
{
i2cproc_cleanup();
bus_unregister(&i2c_bus_type);
}
module_init(i2cproc_init); module_init(i2c_init);
module_exit(i2cproc_cleanup); module_exit(i2c_exit);
#endif /* def CONFIG_PROC_FS */
/* ---------------------------------------------------- /* ----------------------------------------------------
* the functional interface to the i2c busses. * the functional interface to the i2c busses.
......
...@@ -34,6 +34,7 @@ ...@@ -34,6 +34,7 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/i2c-id.h> #include <linux/i2c-id.h>
#include <linux/device.h> /* for struct device */
#include <asm/semaphore.h> #include <asm/semaphore.h>
/* --- General options ------------------------------------------------ */ /* --- General options ------------------------------------------------ */
...@@ -144,6 +145,8 @@ struct i2c_driver { ...@@ -144,6 +145,8 @@ struct i2c_driver {
int (*command)(struct i2c_client *client,unsigned int cmd, void *arg); int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
}; };
extern struct bus_type i2c_bus_type;
/* /*
* i2c_client identifies a single device (i.e. chip) that is connected to an * i2c_client identifies a single device (i.e. chip) that is connected to an
* i2c bus. The behaviour is defined by the routines of the driver. This * i2c bus. The behaviour is defined by the routines of the driver. This
......
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