From 9e937cc7b61f38c774df5a003048eefbf6186a51 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Sat, 18 Dec 2021 13:42:27 +0800
Subject: [PATCH] add hello driver module and makefile
---
bsp/drivers/users/hello.c | 35 +++++++++++++++++
bsp/drivers/users/Makefile | 39 +++++++++++++++++++
2 files changed, 74 insertions(+), 0 deletions(-)
diff --git a/bsp/drivers/users/Makefile b/bsp/drivers/users/Makefile
new file mode 100644
index 0000000..46bdd9d
--- /dev/null
+++ b/bsp/drivers/users/Makefile
@@ -0,0 +1,39 @@
+#*********************************************************************************
+# Copyright: (C) 2021 LingYun IoT System Studio <www.weike-iot.com>
+# All rights reserved.
+#
+# Filename: Makefile
+# Description: This Makefile used to compile all the drivers here
+#
+# Version: 1.0.0(18/12/2021~)
+# Author: Guo Wenxue <guowenxue@gmail.com>
+# ChangeLog: 1, Release initial version on "18/12/2021 01:29:33 PM"
+#
+#********************************************************************************/
+
+CROSS_COMPILE=/opt/buildroot/cortexA7/bin/arm-linux-
+
+LINUX_SRC = ${shell pwd}/../../kernel/linux-imx/
+DRV_INSTPATH = ${shell pwd}/../../rootfs/driver/
+
+EXTRA_INSTPATH=/tftp
+
+PWD := $(shell pwd)
+
+obj-m += hello.o
+
+modules:
+ @echo ${LINUX_SRC}
+ @make -C $(LINUX_SRC) M=$(PWD) modules
+ @make -C $(LINUX_SRC) M=$(PWD) modules_install INSTALL_MOD_PATH=${DRV_INSTPATH} INSTALL_MOD_STRIP=1
+ @make clear
+
+install:
+ cp -af *.ko ${EXTRA_INSTPATH}
+
+clear:
+ @rm -f *.o *.mod* .*.cmd *.symvers *.order
+
+clean: clear
+ @rm -f *.ko
+
diff --git a/bsp/drivers/users/hello.c b/bsp/drivers/users/hello.c
new file mode 100644
index 0000000..49acb63
--- /dev/null
+++ b/bsp/drivers/users/hello.c
@@ -0,0 +1,35 @@
+/*********************************************************************************
+ * Copyright: (C) 2021 LingYun IoT System Studio <www.weike-iot.com>
+ * All rights reserved.
+ *
+ * Filename: hello.c
+ * Description: This file is the linux kernel sample hello module
+ *
+ * Version: 1.0.0(18/12/2021~)
+ * Author: Guo Wenxue <guowenxue@gmail.com>
+ * ChangeLog: 1, Release initial version on "18/12/2021 10:50:26 AM"
+ *
+ ********************************************************************************/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+static __init int hello_init(void)
+{
+ printk(KERN_ALERT "Hello, LingYun IoT System Studio!\n");
+ return 0;
+}
+
+static __exit void hello_exit(void)
+{
+ printk(KERN_ALERT "Goodbye, I have found a good job!\n");
+}
+
+module_init(hello_init);
+module_exit(hello_exit);
+
+MODULE_AUTHOR("GuoWenxue <guowenxue@gmail.com>");
+MODULE_DESCRIPTION("Linux Kernel hello module");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_INFO(intree, "Y");
--
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