1 files changed, 0 insertions, 291 deletions
diff --git a/schulung_tools/drivers/patch-kernel-hello.diff b/schulung_tools/drivers/patch-kernel-hello.diff
deleted file mode 100644
index d3605c4..0000000
--- a/schulung_tools/drivers/patch-kernel-hello.diff
+++ /dev/null
@@ -1,291 +0,0 @@
-diff -urNp a/drivers/char/hello.c b/drivers/char/hello.c
---- a/drivers/char/hello.c	1970-01-01 01:00:00.000000000 +0100
-+++ b/drivers/char/hello.c	2016-06-08 20:46:01.991211855 +0200
-@@ -0,0 +1,255 @@
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/fs.h>
-+#include <linux/uaccess.h>
-+#include <linux/slab.h>
-+#include <linux/device.h>
-+#include <linux/platform_device.h>
-+#include <linux/cdev.h>
-+#include <linux/of.h>
-+
-+struct hello_dev {
-+	struct device *dev;
-+	struct cdev cdev;
-+	unsigned int minor;
-+};
-+
-+#define HELLO_MAX_DEVICES 10
-+
-+static struct class *hello_class;
-+static dev_t hello_devt;
-+
-+static int hello_open(struct inode *node, struct file *f)
-+{
-+	struct cdev *cd = node->i_cdev;
-+	struct hello_dev *hello = container_of(cd, struct hello_dev, cdev);
-+	dev_info(hello->dev, "%s\n", __func__);
-+	f->private_data = hello;
-+	return 0;
-+}
-+
-+static int hello_release(struct inode *node, struct file *f)
-+{
-+	struct hello_dev *hello = f->private_data;
-+	dev_info(hello->dev, "%s\n", __func__);
-+	f->private_data = NULL;
-+	return 0;
-+}
-+
-+static ssize_t hello_read(struct file *f, char __user *u, size_t s, loff_t *l)
-+{
-+	struct hello_dev *hello = f->private_data;
-+	char buf[10];
-+	size_t len;
-+
-+	dev_info(hello->dev, "%s: size=%zu offset=%llu\n", __func__, s, *l);
-+
-+	if (*l >= 40)
-+		return 0;
-+
-+	len = snprintf(buf, sizeof(buf), "hello:%d\n", hello->minor);
-+
-+	if (s < len)
-+		len = s;
-+
-+	if (copy_to_user(u, buf, len) != 0)
-+		return -EFAULT;
-+
-+	*l += len;
-+
-+	return len;
-+}
-+
-+static ssize_t hello_write(struct file *f, const char __user *u, size_t s,
-+			   loff_t *l)
-+{
-+	struct hello_dev *hello = f->private_data;
-+	dev_info(hello->dev, "%s: size=%zu offset=%llu\n", __func__, s, *l);
-+	return s;
-+}
-+
-+static const struct file_operations hello_fops = {
-+	.owner = THIS_MODULE,
-+	.open = hello_open,
-+	.release = hello_release,
-+	.read = hello_read,
-+	.write = hello_write,
-+};
-+
-+static ssize_t major_show(struct device *dev,
-+			  struct device_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%d\n", MAJOR(hello_devt));
-+}
-+static DEVICE_ATTR_RO(major);
-+
-+static ssize_t minor_show(struct device *dev,
-+			  struct device_attribute *attr, char *buf)
-+{
-+	struct platform_device *pdev = to_platform_device(dev);
-+	struct hello_dev *hello = platform_get_drvdata(pdev);
-+
-+	return sprintf(buf, "%d\n", hello->minor);
-+}
-+static DEVICE_ATTR_RO(minor);
-+
-+static struct attribute *hello_device_attrs[] = {
-+        &dev_attr_major.attr,
-+        &dev_attr_minor.attr,
-+        NULL,
-+};
-+ATTRIBUTE_GROUPS(hello_device);
-+
-+static int hello_probe(struct platform_device *pdev)
-+{
-+	struct hello_dev *hello;
-+	struct device *dev;
-+	dev_t devt;
-+	int ret;
-+
-+	hello = devm_kzalloc(&pdev->dev, sizeof(*hello), GFP_KERNEL);
-+	if (!hello) {
-+		dev_err(&pdev->dev, "devm_kzalloc failed\n");
-+		return -ENOMEM;
-+	}
-+
-+#ifdef CONFIG_OF
-+	ret = of_property_read_u32(pdev->dev.of_node, "index", &hello->minor);
-+	if (ret < 0) {
-+		dev_err(&pdev->dev, "no index specified\n");
-+		goto err_out1;
-+	}
-+#else
-+	hello->minor = (unsigned)pdev->id;
-+#endif
-+
-+	if (hello->minor >= HELLO_MAX_DEVICES) {
-+		dev_err(&pdev->dev, "invalid index: %u\n", hello->minor);
-+		ret = -EINVAL;
-+		goto err_out1;
-+	}
-+
-+	hello->dev = &pdev->dev;
-+	platform_set_drvdata(pdev, hello);
-+
-+	devt = MKDEV(MAJOR(hello_devt), hello->minor);
-+
-+	cdev_init(&hello->cdev, &hello_fops);
-+	hello->cdev.owner = THIS_MODULE;
-+	ret = cdev_add(&hello->cdev, devt, 1);
-+	if (ret != 0) {
-+		dev_err(&pdev->dev, "cdev_add failed\n");
-+		goto err_out1;
-+	}
-+
-+	dev = device_create(hello_class, &pdev->dev, devt, hello,
-+			    "hello%d", hello->minor);
-+	if (IS_ERR(dev)) {
-+		dev_err(&pdev->dev, "device_create failed\n");
-+		ret = PTR_ERR(dev);
-+		goto err_out2;
-+	}
-+
-+	dev_info(&pdev->dev, "HELLO! I am hello device %d!\n", hello->minor);
-+
-+	return 0;
-+
-+err_out2:
-+	cdev_del(&hello->cdev);
-+err_out1:
-+	platform_set_drvdata(pdev, NULL);
-+	return ret;
-+}
-+
-+static int hello_remove(struct platform_device *pdev)
-+{
-+	struct hello_dev *hello = platform_get_drvdata(pdev);
-+
-+	device_destroy(hello_class, MKDEV(MAJOR(hello_devt), hello->minor));
-+	cdev_del(&hello->cdev);
-+	platform_set_drvdata(pdev, NULL);
-+
-+	dev_info(&pdev->dev, "GOODBYE! I was hello device %d!\n", hello->minor);
-+
-+	return 0;
-+}
-+
-+static const struct of_device_id hello_match[] = {
-+	{ .compatible = "virtual,hello", },
-+	{ /* end of table */ }
-+};
-+
-+static struct platform_driver hello_driver = {
-+	.driver = {
-+		.name = "hello",
-+		.owner = THIS_MODULE,
-+		.of_match_table = hello_match,
-+	},
-+	.probe = hello_probe,
-+	.remove = hello_remove,
-+};
-+
-+#ifndef CONFIG_OF
-+static struct platform_device *pdevs[3];
-+#endif
-+
-+static int __init hello_init(void)
-+{
-+	int ret;
-+
-+	printk(KERN_INFO "%s\n", __func__);
-+
-+	ret = alloc_chrdev_region(&hello_devt, 0, HELLO_MAX_DEVICES, "hello");
-+	if (ret < 0)
-+		return ret;
-+
-+	hello_class = class_create(THIS_MODULE, "hello");
-+	if (IS_ERR(hello_class)) {
-+		printk(KERN_ERR "%s: failed to create class\n", __func__);
-+		ret = PTR_ERR(hello_class);
-+		goto err_out1;
-+	}
-+
-+	hello_class->dev_groups = hello_device_groups;
-+
-+	ret = platform_driver_register(&hello_driver);
-+	if (ret != 0)
-+		goto err_out2;
-+
-+#ifndef CONFIG_OF
-+	pdevs[0] = platform_device_register_simple("hello", 1, NULL, 0);
-+	pdevs[1] = platform_device_register_simple("hello", 3, NULL, 0);
-+	pdevs[2] = platform_device_register_simple("hello", 5, NULL, 0);
-+#endif
-+
-+	return 0;
-+
-+err_out2:
-+	class_destroy(hello_class);
-+err_out1:
-+	unregister_chrdev_region(hello_devt, HELLO_MAX_DEVICES);
-+	return ret;
-+}
-+
-+static void __exit hello_exit(void)
-+{
-+	printk(KERN_INFO "%s\n", __func__);
-+
-+#ifndef CONFIG_OF
-+	platform_device_unregister(pdevs[0]);
-+	platform_device_unregister(pdevs[1]);
-+	platform_device_unregister(pdevs[2]);
-+#endif
-+
-+	platform_driver_unregister(&hello_driver);
-+	class_destroy(hello_class);
-+	unregister_chrdev_region(hello_devt, HELLO_MAX_DEVICES);
-+}
-+
-+module_init(hello_init);
-+module_exit(hello_exit);
-+
-+MODULE_AUTHOR("John Ogness <john.ogness@linutronix.de>");
-+MODULE_DESCRIPTION("a great module for hello-ing!");
-+MODULE_LICENSE("GPL v2");
-+MODULE_VERSION("20160607");
-diff -urNp a/drivers/char/Kconfig b/drivers/char/Kconfig
---- a/drivers/char/Kconfig	2016-05-16 00:43:13.000000000 +0200
-+++ b/drivers/char/Kconfig	2016-06-08 20:41:14.047205734 +0200
-@@ -6,6 +6,16 @@ menu "Character devices"
- 
- source "drivers/tty/Kconfig"
- 
-+config HELLO
-+	tristate "hello demo driver"
-+	default n
-+	help
-+	  This driver demonstrates how to create a platform device that is
-+	  specified in a device tree.
-+
-+	  It also create a character device to demonstrate how a character
-+	  device interface can be provided to userspace.
-+
- config DEVMEM
- 	bool "/dev/mem virtual device support"
- 	default y
-diff -urNp a/drivers/char/Makefile b/drivers/char/Makefile
---- a/drivers/char/Makefile	2016-05-16 00:43:13.000000000 +0200
-+++ b/drivers/char/Makefile	2016-06-08 14:16:44.897437533 +0200
-@@ -16,6 +16,8 @@ obj-$(CONFIG_IBM_BSR)		+= bsr.o
- obj-$(CONFIG_SGI_MBCS)		+= mbcs.o
- obj-$(CONFIG_BFIN_OTP)		+= bfin-otp.o
- 
-+obj-$(CONFIG_HELLO)		+= hello.o
-+
- obj-$(CONFIG_PRINTER)		+= lp.o
- 
- obj-$(CONFIG_APM_EMULATION)	+= apm-emulation.o