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SubjectRe: [PATCH] i2c driver changes for 2.5.64
From
Date
ChangeSet 1.1112, 2003/03/13 12:26:39-08:00, greg@kroah.com

i2c: add i2c sysfs bus support.


drivers/i2c/i2c-core.c | 33 ++++++++++++++++++++++++++++++---
include/linux/i2c.h | 3 +++
2 files changed, 33 insertions(+), 3 deletions(-)

diff -Nru a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
--- a/drivers/i2c/i2c-core.c Thu Mar 13 16:57:09 2003
+++ b/drivers/i2c/i2c-core.c Thu Mar 13 16:57:09 2003
@@ -598,10 +598,37 @@
{
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 */

-module_init(i2cproc_init);
-module_exit(i2cproc_cleanup);
-#endif /* def 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(i2c_init);
+module_exit(i2c_exit);

/* ----------------------------------------------------
* the functional interface to the i2c busses.
diff -Nru a/include/linux/i2c.h b/include/linux/i2c.h
--- a/include/linux/i2c.h Thu Mar 13 16:57:09 2003
+++ b/include/linux/i2c.h Thu Mar 13 16:57:09 2003
@@ -34,6 +34,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/i2c-id.h>
+#include <linux/device.h> /* for struct device */
#include <asm/semaphore.h>

/* --- General options ------------------------------------------------ */
@@ -143,6 +144,8 @@
*/
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
-
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