schulung_tools: drivers: remove modules subdir

There is no need for the extra directory level. Move all the
example modules to the parent "drivers" directory and delete
the modules directory.

Signed-off-by: John Ogness <john.ogness@linutronix.de>

12 files changed, 0 insertions, 1279 deletions

diff --git a/schulung_tools/drivers/modules/hellodriver/Makefile b/schulung_tools/drivers/modules/hellodriver/Makefile
deleted file mode 100644
index 764fefd..0000000
--- a/schulung_tools/drivers/modules/hellodriver/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-MNAME = hello
-BDIR = /lib/modules/`uname -r`/build
-
-ifeq ($(KERNELRELEASE),)
-# called from shell
-
-.PHONY: default clean
-
-default:
-	make -C $(BDIR) M=$(shell pwd) modules
-
-clean:
-	rm -rf $(MNAME).mod.* $(MNAME).*o .$(MNAME)* .tmp* Module.symvers modules.order
-
-else
-# called from kernel Makefile
-
-	obj-m := $(MNAME).o
-endif
diff --git a/schulung_tools/drivers/modules/hellodriver/hello.c b/schulung_tools/drivers/modules/hellodriver/hello.c
deleted file mode 100644
index 7f78d06..0000000
--- a/schulung_tools/drivers/modules/hellodriver/hello.c
+++ /dev/null
@@ -1,230 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#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 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_out;
-	}
-#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_out;
-	}
-
-	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_drvdata;
-	}
-
-	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_cdev;
-	}
-
-	dev_info(&pdev->dev, "HELLO! I am hello device %d!\n", hello->minor);
-
-	return 0;
-
-err_cdev:
-	cdev_del(&hello->cdev);
-err_drvdata:
-	platform_set_drvdata(pdev, NULL);
-err_out:
-	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",
-		.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_region;
-	}
-
-	ret = platform_driver_register(&hello_driver);
-	if (ret != 0)
-		goto err_class;
-
-#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_class:
-	class_destroy(hello_class);
-err_region:
-	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("20190101");
diff --git a/schulung_tools/drivers/modules/hellodriver/patch-add-sysfs.diff b/schulung_tools/drivers/modules/hellodriver/patch-add-sysfs.diff
deleted file mode 100644
index 44c913e..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patch-add-sysfs.diff
+++ /dev/null
@@ -1,57 +0,0 @@
-From 9ec20c5b243d6f1f83b38b57474cf532c4575a02 Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 12:58:25 +0106
-Subject: [PATCH] hello: add custom sysfs files
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello.c | 26 ++++++++++++++++++++++
- 1 file changed, 26 insertions(+)
-
-diff --git a/hello.c b/hello.c
-index 7f78d06..4c7989a 100644
---- a/hello.c
-+++ b/hello.c
-@@ -77,6 +77,30 @@ static const struct file_operations hello_fops = {
- 	.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;
-@@ -187,6 +211,8 @@ static int __init hello_init(void)
- 		goto err_region;
- 	}
- 
-+	hello_class->dev_groups = hello_device_groups;
-+
- 	ret = platform_driver_register(&hello_driver);
- 	if (ret != 0)
- 		goto err_class;
--- 
-2.1.4
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patch-hello-dts.diff b/schulung_tools/drivers/modules/hellodriver/patch-hello-dts.diff
deleted file mode 100644
index 2d0bf52..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patch-hello-dts.diff
+++ /dev/null
@@ -1,26 +0,0 @@
-diff --git a/arch/arm/boot/dts/vexpress-v2p-ca9.dts b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
-index d949fac..4952799 100644
---- a/arch/arm/boot/dts/vexpress-v2p-ca9.dts
-+++ b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
-@@ -132,6 +132,21 @@
- 		status = "disabled";
- 	};
- 
-+	hello@1 {
-+		compatible = "virtual,hello";
-+		index = <1>;
-+	};
-+
-+	hello@5 {
-+		compatible = "virtual,hello";
-+		index = <5>;
-+	};
-+
-+	hello@8 {
-+		compatible = "virtual,hello";
-+		index = <8>;
-+	};
-+
- 	watchdog@100e5000 {
- 		compatible = "arm,sp805", "arm,primecell";
- 		reg = <0x100e5000 0x1000>;
diff --git a/schulung_tools/drivers/modules/hellodriver/patch-kernel-build.diff b/schulung_tools/drivers/modules/hellodriver/patch-kernel-build.diff
deleted file mode 100644
index 8d43ca7..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patch-kernel-build.diff
+++ /dev/null
@@ -1,32 +0,0 @@
-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
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/0001-hello-change-from-platform-to-pci-bus.patch b/schulung_tools/drivers/modules/hellodriver/patches-leds/0001-hello-change-from-platform-to-pci-bus.patch
deleted file mode 100644
index 35dc817..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/0001-hello-change-from-platform-to-pci-bus.patch
+++ /dev/null
@@ -1,185 +0,0 @@
-From 28357d61e0ec39851ca88a09b04ce876b8758448 Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 12:11:27 +0100
-Subject: [PATCH 2/7] hello: change from platform to pci bus
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello.c | 89 +++++++++++++++++++++++++++++++----------------------------------
- 1 file changed, 43 insertions(+), 46 deletions(-)
-
-diff --git a/hello.c b/hello.c
-index 7f78d06..db50302 100644
---- a/hello.c
-+++ b/hello.c
-@@ -5,9 +5,8 @@
- #include <linux/uaccess.h>
- #include <linux/slab.h>
- #include <linux/device.h>
--#include <linux/platform_device.h>
-+#include <linux/pci.h>
- #include <linux/cdev.h>
--#include <linux/of.h>
- 
- struct hello_dev {
- 	struct device *dev;
-@@ -77,7 +76,7 @@ static const struct file_operations hello_fops = {
- 	.write = hello_write,
- };
- 
--static int hello_probe(struct platform_device *pdev)
-+static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- {
- 	struct hello_dev *hello;
- 	struct device *dev;
-@@ -90,15 +89,7 @@ static int hello_probe(struct platform_device *pdev)
- 		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_out;
--	}
--#else
--	hello->minor = (unsigned)pdev->id;
--#endif
-+	hello->minor = 1;
- 
- 	if (hello->minor >= HELLO_MAX_DEVICES) {
- 		dev_err(&pdev->dev, "invalid index: %u\n", hello->minor);
-@@ -107,7 +98,27 @@ static int hello_probe(struct platform_device *pdev)
- 	}
- 
- 	hello->dev = &pdev->dev;
--	platform_set_drvdata(pdev, hello);
-+	pci_set_drvdata(pdev, hello);
-+
-+	ret = pci_enable_device(pdev);
-+	if (ret) {
-+		dev_err(&pdev->dev, "failed to enable device\n");
-+		goto err_drvdata;
-+	}
-+
-+	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
-+		dev_err(&pdev->dev, "failed to find base address\n");
-+		ret = -ENODEV;
-+		goto err_enable;
-+	}
-+
-+	ret = pci_request_regions(pdev, "hello");
-+	if (ret) {
-+		dev_err(&pdev->dev, "failed to request resources\n");
-+		goto err_enable;
-+	}
-+
-+	pci_set_master(pdev);
- 
- 	devt = MKDEV(MAJOR(hello_devt), hello->minor);
- 
-@@ -116,7 +127,7 @@ static int hello_probe(struct platform_device *pdev)
- 	ret = cdev_add(&hello->cdev, devt, 1);
- 	if (ret != 0) {
- 		dev_err(&pdev->dev, "cdev_add failed\n");
--		goto err_drvdata;
-+		goto err_regions;
- 	}
- 
- 	dev = device_create(hello_class, &pdev->dev, devt, hello,
-@@ -133,43 +144,41 @@ static int hello_probe(struct platform_device *pdev)
- 
- err_cdev:
- 	cdev_del(&hello->cdev);
-+err_regions:
-+	pci_release_regions(pdev);
-+err_enable:
-+	pci_disable_device(pdev);
- err_drvdata:
--	platform_set_drvdata(pdev, NULL);
--err_out:
-+	pci_set_drvdata(pdev, NULL);
- 	return ret;
- }
- 
--static int hello_remove(struct platform_device *pdev)
-+static void hello_remove(struct pci_dev *pdev)
- {
--	struct hello_dev *hello = platform_get_drvdata(pdev);
-+	struct hello_dev *hello = pci_get_drvdata(pdev);
- 
- 	device_destroy(hello_class, MKDEV(MAJOR(hello_devt), hello->minor));
- 	cdev_del(&hello->cdev);
--	platform_set_drvdata(pdev, NULL);
-+	pci_release_regions(pdev);
-+	pci_disable_device(pdev);
-+	pci_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", },
-+static const struct pci_device_id hello_id_table[] = {
-+	{ 0x1af4, 0x1110, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0 },
- 	{ /* end of table */ }
- };
-+MODULE_DEVICE_TABLE(pci, hello_id_table);
- 
--static struct platform_driver hello_driver = {
--	.driver = {
--		.name = "hello",
--		.of_match_table = hello_match,
--	},
-+static struct pci_driver hello_driver = {
-+	.name = "hello",
-+	.id_table = hello_id_table,
- 	.probe = hello_probe,
- 	.remove = hello_remove,
- };
- 
--#ifndef CONFIG_OF
--static struct platform_device *pdevs[3];
--#endif
--
- static int __init hello_init(void)
- {
- 	int ret;
-@@ -187,16 +196,10 @@ static int __init hello_init(void)
- 		goto err_region;
- 	}
- 
--	ret = platform_driver_register(&hello_driver);
-+	ret = pci_register_driver(&hello_driver);
- 	if (ret != 0)
- 		goto err_class;
- 
--#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_class:
-@@ -210,13 +213,7 @@ 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);
-+	pci_unregister_driver(&hello_driver);
- 	class_destroy(hello_class);
- 	unregister_chrdev_region(hello_devt, HELLO_MAX_DEVICES);
- }
--- 
-2.11.0
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/0002-hello-add-pci-memory-mapping.patch b/schulung_tools/drivers/modules/hellodriver/patches-leds/0002-hello-add-pci-memory-mapping.patch
deleted file mode 100644
index 0a11a57..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/0002-hello-add-pci-memory-mapping.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-From 3afec946845a02a8fce94d00abda9b4c8abcbce0 Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 11:03:59 +0106
-Subject: [PATCH 3/7] hello: add pci memory mapping
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello.c | 12 +++++++++++-
- 1 file changed, 11 insertions(+), 1 deletion(-)
-
-diff --git a/hello.c b/hello.c
-index db50302..58a64e5 100644
---- a/hello.c
-+++ b/hello.c
-@@ -12,6 +12,7 @@ struct hello_dev {
- 	struct device *dev;
- 	struct cdev cdev;
- 	unsigned int minor;
-+	void __iomem *mem;
- };
- 
- #define HELLO_MAX_DEVICES 10
-@@ -120,6 +121,12 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 
- 	pci_set_master(pdev);
- 
-+	hello->mem = pci_iomap(pdev, 2, 0);
-+	if (!hello->mem) {
-+		ret = -ENOMEM;
-+		goto err_regions;
-+	}
-+
- 	devt = MKDEV(MAJOR(hello_devt), hello->minor);
- 
- 	cdev_init(&hello->cdev, &hello_fops);
-@@ -127,7 +134,7 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 	ret = cdev_add(&hello->cdev, devt, 1);
- 	if (ret != 0) {
- 		dev_err(&pdev->dev, "cdev_add failed\n");
--		goto err_regions;
-+		goto err_iomap;
- 	}
- 
- 	dev = device_create(hello_class, &pdev->dev, devt, hello,
-@@ -144,6 +151,8 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 
- err_cdev:
- 	cdev_del(&hello->cdev);
-+err_iomap:
-+	pci_iounmap(pdev, hello->mem);
- err_regions:
- 	pci_release_regions(pdev);
- err_enable:
-@@ -159,6 +168,7 @@ static void hello_remove(struct pci_dev *pdev)
- 
- 	device_destroy(hello_class, MKDEV(MAJOR(hello_devt), hello->minor));
- 	cdev_del(&hello->cdev);
-+	pci_iounmap(pdev, hello->mem);
- 	pci_release_regions(pdev);
- 	pci_disable_device(pdev);
- 	pci_set_drvdata(pdev, NULL);
--- 
-2.11.0
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/0003-hello-add-led-toggling-via-chardev-read-write.patch b/schulung_tools/drivers/modules/hellodriver/patches-leds/0003-hello-add-led-toggling-via-chardev-read-write.patch
deleted file mode 100644
index 8f81e39..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/0003-hello-add-led-toggling-via-chardev-read-write.patch
+++ /dev/null
@@ -1,56 +0,0 @@
-From c7a4c4448632af43383818654dd79d2251b27e3e Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 11:04:56 +0106
-Subject: [PATCH 4/7] hello: add led toggling via chardev read/write
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello.c | 28 +++++++++++++++++++++++++++-
- 1 file changed, 27 insertions(+), 1 deletion(-)
-
-diff --git a/hello.c b/hello.c
-index 58a64e5..f664121 100644
---- a/hello.c
-+++ b/hello.c
-@@ -61,11 +61,37 @@ static ssize_t hello_read(struct file *f, char __user *u, size_t s, loff_t *l)
- 	return len;
- }
- 
-+static void toggle_led(struct hello_dev *hello, int offset)
-+{
-+	if (readb(hello->mem + offset))
-+		writeb(0, hello->mem + offset);
-+	else
-+		writeb(0xff, hello->mem + offset);
-+}
-+
- 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);
-+	size_t sz = s;
-+	char buf[32];
-+
-+	if (sz >= sizeof(buf))
-+		sz = sizeof(buf) - 1;
-+	if (copy_from_user(buf, u, sz) != 0)
-+		return -EFAULT;
-+	buf[sz] = 0;
-+
-+	dev_info(hello->dev, "%s: size=%zu offset=%llu buf=%s\n", __func__,
-+		 s, *l, buf);
-+
-+	if (strstarts(buf, "heartbeat"))
-+		toggle_led(hello, 0);
-+	else if (strstarts(buf, "net"))
-+		toggle_led(hello, 1);
-+	else if (strstarts(buf, "disk"))
-+		toggle_led(hello, 2);
-+
- 	return s;
- }
- 
--- 
-2.11.0
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/0004-hello-add-led-toggling-via-chardev-ioctl.patch b/schulung_tools/drivers/modules/hellodriver/patches-leds/0004-hello-add-led-toggling-via-chardev-ioctl.patch
deleted file mode 100644
index a67bf98..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/0004-hello-add-led-toggling-via-chardev-ioctl.patch
+++ /dev/null
@@ -1,124 +0,0 @@
-From be59ddb43fbf039ed0bc848ac56b7f72f7a619c8 Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 11:07:10 +0106
-Subject: [PATCH 5/7] hello: add led toggling via chardev ioctl
-
-Compile userspace application with:
-
-$ gcc -Wall -Werror hello-led.c -ohello-led
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello-led.c | 38 ++++++++++++++++++++++++++++++++++++++
- hello.c     | 22 ++++++++++++++++++++++
- hello.h     |  7 +++++++
- 3 files changed, 67 insertions(+)
- create mode 100644 hello-led.c
- create mode 100644 hello.h
-
-diff --git a/hello-led.c b/hello-led.c
-new file mode 100644
-index 0000000..43230cd
---- /dev/null
-+++ b/hello-led.c
-@@ -0,0 +1,38 @@
-+#include <stdio.h>
-+#include <string.h>
-+#include <errno.h>
-+#include <fcntl.h>
-+#include <unistd.h>
-+#include <sys/ioctl.h>
-+#include <sys/types.h>
-+#include <sys/stat.h>
-+#include "hello.h"
-+
-+int main(int argc, char *argv[])
-+{
-+	int fd;
-+
-+	if (argc != 3) {
-+		fprintf(stderr, "usage: %s <device> <led>\n", argv[0]);
-+		return 1;
-+	}
-+
-+	fd = open(argv[1], O_RDWR);
-+	if (fd < 0) {
-+		fprintf(stderr, "open() failed: %s\n", strerror(errno));
-+		return 1;
-+	}
-+
-+	if (strcmp(argv[2], "heartbeat") == 0)
-+		ioctl(fd, HELLO_IOCTL_TOGGLE_LED, 0);
-+	else if (strcmp(argv[2], "net") == 0)
-+		ioctl(fd, HELLO_IOCTL_TOGGLE_LED, 1);
-+	else if (strcmp(argv[2], "disk") == 0)
-+		ioctl(fd, HELLO_IOCTL_TOGGLE_LED, 2);
-+	else
-+		fprintf(stderr, "unknown led\n");
-+
-+	close(fd);
-+
-+	return 0;
-+}
-diff --git a/hello.c b/hello.c
-index f664121..c42c75f 100644
---- a/hello.c
-+++ b/hello.c
-@@ -7,6 +7,7 @@
- #include <linux/device.h>
- #include <linux/pci.h>
- #include <linux/cdev.h>
-+#include "hello.h"
- 
- struct hello_dev {
- 	struct device *dev;
-@@ -95,12 +96,33 @@ static ssize_t hello_write(struct file *f, const char __user *u, size_t s,
- 	return s;
- }
- 
-+static long hello_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
-+{
-+	struct hello_dev *hello = f->private_data;
-+	u32 val;
-+
-+	dev_info(hello->dev, "%s: cmd=%u arg=%lu\n", __func__, cmd, arg);
-+
-+	switch (cmd) {
-+	case HELLO_IOCTL_TOGGLE_LED:
-+		val = arg;
-+		if (val >= 0 && val <= 2)
-+			toggle_led(hello, val);
-+		break;
-+	default:
-+		return -EINVAL;
-+	}
-+
-+	return 0;
-+}
-+
- static const struct file_operations hello_fops = {
- 	.owner = THIS_MODULE,
- 	.open = hello_open,
- 	.release = hello_release,
- 	.read = hello_read,
- 	.write = hello_write,
-+	.unlocked_ioctl = hello_ioctl,
- };
- 
- static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-diff --git a/hello.h b/hello.h
-new file mode 100644
-index 0000000..cb172d9
---- /dev/null
-+++ b/hello.h
-@@ -0,0 +1,7 @@
-+#ifndef HELLO_H
-+#define HELLO_H
-+
-+#define HELLO_BASE		0x9F
-+#define HELLO_IOCTL_TOGGLE_LED	_IOW(HELLO_BASE, 0x00, unsigned int)
-+
-+#endif /* HELLO_H */
--- 
-2.11.0
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/0005-hello-add-led-toggling-via-leds-subsystem.patch b/schulung_tools/drivers/modules/hellodriver/patches-leds/0005-hello-add-led-toggling-via-leds-subsystem.patch
deleted file mode 100644
index 32f37ce..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/0005-hello-add-led-toggling-via-leds-subsystem.patch
+++ /dev/null
@@ -1,142 +0,0 @@
-From 3caece4ff394938f7544b994d35e784e2ce617cb Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 11:10:09 +0106
-Subject: [PATCH 6/7] hello: add led toggling via leds subsystem
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 90 insertions(+)
-
-diff --git a/hello.c b/hello.c
-index c42c75f..f9809f3 100644
---- a/hello.c
-+++ b/hello.c
-@@ -7,6 +7,7 @@
- #include <linux/device.h>
- #include <linux/pci.h>
- #include <linux/cdev.h>
-+#include <linux/leds.h>
- #include "hello.h"
- 
- struct hello_dev {
-@@ -14,6 +15,10 @@ struct hello_dev {
- 	struct cdev cdev;
- 	unsigned int minor;
- 	void __iomem *mem;
-+
-+	struct led_classdev led_heartbeat;
-+	struct led_classdev led_net;
-+	struct led_classdev led_disk;
- };
- 
- #define HELLO_MAX_DEVICES 10
-@@ -125,6 +130,67 @@ static const struct file_operations hello_fops = {
- 	.unlocked_ioctl = hello_ioctl,
- };
- 
-+static void set_brightness(struct hello_dev *hello, int offset,
-+			   enum led_brightness b)
-+{
-+	if (b)
-+		writeb(0xff, hello->mem + offset);
-+	else
-+		writeb(0, hello->mem + offset);
-+}
-+
-+static enum led_brightness get_brightness(struct hello_dev *hello, int offset)
-+{
-+	if (readb(hello->mem + offset))
-+		return 1;
-+	return 0;
-+}
-+
-+static void hello_led_heartbeat_set(struct led_classdev *ldev,
-+				    enum led_brightness b)
-+{
-+	struct hello_dev *hello = container_of(ldev, struct hello_dev,
-+					       led_heartbeat);
-+	set_brightness(hello, 0, b);
-+}
-+
-+static enum led_brightness hello_led_heartbeat_get(struct led_classdev *ldev)
-+{
-+	struct hello_dev *hello = container_of(ldev, struct hello_dev,
-+					       led_heartbeat);
-+	return get_brightness(hello, 0);
-+}
-+
-+static void hello_led_net_set(struct led_classdev *ldev,
-+			      enum led_brightness b)
-+{
-+	struct hello_dev *hello = container_of(ldev, struct hello_dev,
-+					       led_net);
-+	set_brightness(hello, 1, b);
-+}
-+
-+static enum led_brightness hello_led_net_get(struct led_classdev *ldev)
-+{
-+	struct hello_dev *hello = container_of(ldev, struct hello_dev,
-+					       led_net);
-+	return get_brightness(hello, 1);
-+}
-+
-+static void hello_led_disk_set(struct led_classdev *ldev,
-+			       enum led_brightness b)
-+{
-+	struct hello_dev *hello = container_of(ldev, struct hello_dev,
-+					       led_disk);
-+	set_brightness(hello, 2, b);
-+}
-+
-+static enum led_brightness hello_led_disk_get(struct led_classdev *ldev)
-+{
-+	struct hello_dev *hello = container_of(ldev, struct hello_dev,
-+					       led_disk);
-+	return get_brightness(hello, 2);
-+}
-+
- static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- {
- 	struct hello_dev *hello;
-@@ -193,6 +259,27 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 		goto err_cdev;
- 	}
- 
-+	hello->led_heartbeat.name = "heartbeat";
-+	hello->led_heartbeat.brightness = get_brightness(hello, 0);
-+	hello->led_heartbeat.max_brightness = 1;
-+	hello->led_heartbeat.brightness_set = hello_led_heartbeat_set;
-+	hello->led_heartbeat.brightness_get = hello_led_heartbeat_get;
-+	led_classdev_register(&pdev->dev, &hello->led_heartbeat);
-+
-+	hello->led_net.name = "net";
-+	hello->led_net.brightness = get_brightness(hello, 2);
-+	hello->led_net.max_brightness = 1;
-+	hello->led_net.brightness_set = hello_led_net_set;
-+	hello->led_net.brightness_get = hello_led_net_get;
-+	led_classdev_register(&pdev->dev, &hello->led_net);
-+
-+	hello->led_disk.name = "disk";
-+	hello->led_disk.brightness = get_brightness(hello, 2);
-+	hello->led_disk.max_brightness = 1;
-+	hello->led_disk.brightness_set = hello_led_disk_set;
-+	hello->led_disk.brightness_get = hello_led_disk_get;
-+	led_classdev_register(&pdev->dev, &hello->led_disk);
-+
- 	dev_info(&pdev->dev, "HELLO! I am hello device %d!\n", hello->minor);
- 
- 	return 0;
-@@ -214,6 +301,9 @@ static void hello_remove(struct pci_dev *pdev)
- {
- 	struct hello_dev *hello = pci_get_drvdata(pdev);
- 
-+	led_classdev_unregister(&hello->led_disk);
-+	led_classdev_unregister(&hello->led_net);
-+	led_classdev_unregister(&hello->led_heartbeat);
- 	device_destroy(hello_class, MKDEV(MAJOR(hello_devt), hello->minor));
- 	cdev_del(&hello->cdev);
- 	pci_iounmap(pdev, hello->mem);
--- 
-2.11.0
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/0006-hello-remove-chardev-use-only-leds-subsystem.patch b/schulung_tools/drivers/modules/hellodriver/patches-leds/0006-hello-remove-chardev-use-only-leds-subsystem.patch
deleted file mode 100644
index 3274ccd..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/0006-hello-remove-chardev-use-only-leds-subsystem.patch
+++ /dev/null
@@ -1,338 +0,0 @@
-From 5f05842b160249563a7e4965aaa01998e562f487 Mon Sep 17 00:00:00 2001
-From: John Ogness <john.ogness@linutronix.de>
-Date: Fri, 15 Feb 2019 11:33:24 +0100
-Subject: [PATCH 7/7] hello: remove chardev, use only leds subsystem
-
-Signed-off-by: John Ogness <john.ogness@linutronix.de>
----
- hello-led.c |  38 -------------
- hello.c     | 181 +-----------------------------------------------------------
- hello.h     |   7 ---
- 3 files changed, 3 insertions(+), 223 deletions(-)
- delete mode 100644 hello-led.c
- delete mode 100644 hello.h
-
-diff --git a/hello-led.c b/hello-led.c
-deleted file mode 100644
-index 43230cd..0000000
---- a/hello-led.c
-+++ /dev/null
-@@ -1,38 +0,0 @@
--#include <stdio.h>
--#include <string.h>
--#include <errno.h>
--#include <fcntl.h>
--#include <unistd.h>
--#include <sys/ioctl.h>
--#include <sys/types.h>
--#include <sys/stat.h>
--#include "hello.h"
--
--int main(int argc, char *argv[])
--{
--	int fd;
--
--	if (argc != 3) {
--		fprintf(stderr, "usage: %s <device> <led>\n", argv[0]);
--		return 1;
--	}
--
--	fd = open(argv[1], O_RDWR);
--	if (fd < 0) {
--		fprintf(stderr, "open() failed: %s\n", strerror(errno));
--		return 1;
--	}
--
--	if (strcmp(argv[2], "heartbeat") == 0)
--		ioctl(fd, HELLO_IOCTL_TOGGLE_LED, 0);
--	else if (strcmp(argv[2], "net") == 0)
--		ioctl(fd, HELLO_IOCTL_TOGGLE_LED, 1);
--	else if (strcmp(argv[2], "disk") == 0)
--		ioctl(fd, HELLO_IOCTL_TOGGLE_LED, 2);
--	else
--		fprintf(stderr, "unknown led\n");
--
--	close(fd);
--
--	return 0;
--}
-diff --git a/hello.c b/hello.c
-index f9809f3..52df6d7 100644
---- a/hello.c
-+++ b/hello.c
-@@ -1,19 +1,12 @@
- // SPDX-License-Identifier: GPL-2.0
- #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/pci.h>
--#include <linux/cdev.h>
- #include <linux/leds.h>
--#include "hello.h"
- 
- struct hello_dev {
- 	struct device *dev;
--	struct cdev cdev;
--	unsigned int minor;
- 	void __iomem *mem;
- 
- 	struct led_classdev led_heartbeat;
-@@ -21,115 +14,6 @@ struct hello_dev {
- 	struct led_classdev led_disk;
- };
- 
--#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 void toggle_led(struct hello_dev *hello, int offset)
--{
--	if (readb(hello->mem + offset))
--		writeb(0, hello->mem + offset);
--	else
--		writeb(0xff, hello->mem + offset);
--}
--
--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;
--	size_t sz = s;
--	char buf[32];
--
--	if (sz >= sizeof(buf))
--		sz = sizeof(buf) - 1;
--	if (copy_from_user(buf, u, sz) != 0)
--		return -EFAULT;
--	buf[sz] = 0;
--
--	dev_info(hello->dev, "%s: size=%zu offset=%llu buf=%s\n", __func__,
--		 s, *l, buf);
--
--	if (strstarts(buf, "heartbeat"))
--		toggle_led(hello, 0);
--	else if (strstarts(buf, "net"))
--		toggle_led(hello, 1);
--	else if (strstarts(buf, "disk"))
--		toggle_led(hello, 2);
--
--	return s;
--}
--
--static long hello_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
--{
--	struct hello_dev *hello = f->private_data;
--	u32 val;
--
--	dev_info(hello->dev, "%s: cmd=%u arg=%lu\n", __func__, cmd, arg);
--
--	switch (cmd) {
--	case HELLO_IOCTL_TOGGLE_LED:
--		val = arg;
--		if (val >= 0 && val <= 2)
--			toggle_led(hello, val);
--		break;
--	default:
--		return -EINVAL;
--	}
--
--	return 0;
--}
--
--static const struct file_operations hello_fops = {
--	.owner = THIS_MODULE,
--	.open = hello_open,
--	.release = hello_release,
--	.read = hello_read,
--	.write = hello_write,
--	.unlocked_ioctl = hello_ioctl,
--};
--
- static void set_brightness(struct hello_dev *hello, int offset,
- 			   enum led_brightness b)
- {
-@@ -194,8 +78,6 @@ static enum led_brightness hello_led_disk_get(struct led_classdev *ldev)
- static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- {
- 	struct hello_dev *hello;
--	struct device *dev;
--	dev_t devt;
- 	int ret;
- 
- 	hello = devm_kzalloc(&pdev->dev, sizeof(*hello), GFP_KERNEL);
-@@ -204,14 +86,6 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 		return -ENOMEM;
- 	}
- 
--	hello->minor = 1;
--
--	if (hello->minor >= HELLO_MAX_DEVICES) {
--		dev_err(&pdev->dev, "invalid index: %u\n", hello->minor);
--		ret = -EINVAL;
--		goto err_out;
--	}
--
- 	hello->dev = &pdev->dev;
- 	pci_set_drvdata(pdev, hello);
- 
-@@ -241,24 +115,6 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 		goto err_regions;
- 	}
- 
--	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_iomap;
--	}
--
--	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_cdev;
--	}
--
- 	hello->led_heartbeat.name = "heartbeat";
- 	hello->led_heartbeat.brightness = get_brightness(hello, 0);
- 	hello->led_heartbeat.max_brightness = 1;
-@@ -280,14 +136,10 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
- 	hello->led_disk.brightness_get = hello_led_disk_get;
- 	led_classdev_register(&pdev->dev, &hello->led_disk);
- 
--	dev_info(&pdev->dev, "HELLO! I am hello device %d!\n", hello->minor);
-+	dev_info(&pdev->dev, "HELLO! I am hello device!\n");
- 
- 	return 0;
- 
--err_cdev:
--	cdev_del(&hello->cdev);
--err_iomap:
--	pci_iounmap(pdev, hello->mem);
- err_regions:
- 	pci_release_regions(pdev);
- err_enable:
-@@ -304,14 +156,12 @@ static void hello_remove(struct pci_dev *pdev)
- 	led_classdev_unregister(&hello->led_disk);
- 	led_classdev_unregister(&hello->led_net);
- 	led_classdev_unregister(&hello->led_heartbeat);
--	device_destroy(hello_class, MKDEV(MAJOR(hello_devt), hello->minor));
--	cdev_del(&hello->cdev);
- 	pci_iounmap(pdev, hello->mem);
- 	pci_release_regions(pdev);
- 	pci_disable_device(pdev);
- 	pci_set_drvdata(pdev, NULL);
- 
--	dev_info(&pdev->dev, "GOODBYE! I was hello device %d!\n", hello->minor);
-+	dev_info(&pdev->dev, "GOODBYE! I was hello device!\n");
- }
- 
- static const struct pci_device_id hello_id_table[] = {
-@@ -329,32 +179,9 @@ static struct pci_driver hello_driver = {
- 
- 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_region;
--	}
--
--	ret = pci_register_driver(&hello_driver);
--	if (ret != 0)
--		goto err_class;
--
--	return 0;
--
--err_class:
--	class_destroy(hello_class);
--err_region:
--	unregister_chrdev_region(hello_devt, HELLO_MAX_DEVICES);
--	return ret;
-+	return pci_register_driver(&hello_driver);
- }
- 
- static void __exit hello_exit(void)
-@@ -362,8 +189,6 @@ static void __exit hello_exit(void)
- 	printk(KERN_INFO "%s\n", __func__);
- 
- 	pci_unregister_driver(&hello_driver);
--	class_destroy(hello_class);
--	unregister_chrdev_region(hello_devt, HELLO_MAX_DEVICES);
- }
- 
- module_init(hello_init);
-diff --git a/hello.h b/hello.h
-deleted file mode 100644
-index cb172d9..0000000
---- a/hello.h
-+++ /dev/null
-@@ -1,7 +0,0 @@
--#ifndef HELLO_H
--#define HELLO_H
--
--#define HELLO_BASE		0x9F
--#define HELLO_IOCTL_TOGGLE_LED	_IOW(HELLO_BASE, 0x00, unsigned int)
--
--#endif /* HELLO_H */
--- 
-2.11.0
-
diff --git a/schulung_tools/drivers/modules/hellodriver/patches-leds/README b/schulung_tools/drivers/modules/hellodriver/patches-leds/README
deleted file mode 100644
index 51bbffa..0000000
--- a/schulung_tools/drivers/modules/hellodriver/patches-leds/README
+++ /dev/null
@@ -1,6 +0,0 @@
-This set of patches show how different subsystems can be used
-by the driver to communicate with the hardware and to present
-itself to the user.
-
-For live demonstrations with actual blinking leds, use the
-"leds" program. (See the README there for details.)