Add a dummy module driver

CodeChenL · Dec 27, 2023 · 0179f8c · 0179f8c
1 parent bcc41b7
commit 0179f8c
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Showing 4 changed files with 33 additions and 3 deletions.
diff --git a/Makefile b/Makefile
@@ -12,8 +12,17 @@ DTBO-ROCKCHIP	:=	$(addprefix arch/arm64/boot/dts/rockchip/overlays/,$(dtb-rockch
 DTBO			:=	$(DTBO-AMLOGIC) $(DTBO-ROCKCHIP)
 TMP				:=	$(addsuffix .tmp,$(DTBO))
 
-.PHONY: all
+KERNEL_HENDERS=/usr/src/linux-headers-$(shell uname -r)
+ARCH=arm64
+CROSS_COMPILE=aarch64-linux-gnu-
+export  ARCH  CROSS_COMPILE
+
+obj-m := radxa-overlays.o
 all: build
+	$(MAKE) -C $(KERNEL_HENDERS) M=$(CURDIR) modules
+
+cleanmodules:
+	$(MAKE) -C $(KERNEL_HENDERS) M=$(CURDIR) clean
 
 #
 # Build

diff --git a/debian/dkms b/debian/dkms
@@ -2,5 +2,5 @@ PACKAGE_NAME="radxa-overlays"
 PACKAGE_VERSION="#MODULE_VERSION#"
 DEST_MODULE_LOCATION[0]="/updates/dkms"
 MAKE="make all"
-CLEAN="make clean"
+CLEAN="make clean cleanmodules"
 AUTOINSTALL="yes"
diff --git a/debian/install b/debian/install
@@ -1,5 +1,5 @@
 #!/usr/bin/dh-exec
 
 arch usr/src/radxa-overlays-${DEB_VERSION}/
-radxa-overlays.ko usr/src/radxa-overlays-${DEB_VERSION}/
+radxa-overlays.c usr/src/radxa-overlays-${DEB_VERSION}/
 Makefile usr/src/radxa-overlays-${DEB_VERSION}/
diff --git a/radxa-overlays.c b/radxa-overlays.c
@@ -0,0 +1,21 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+static int __init mod_init(void)
+{
+   printk(KERN_INFO "radxa-overlays: Init\n");
+   printk(KERN_INFO "radxa-overlays: radxa-overlays is a dummy module for radxa-overlays-dkms\n");
+   return 0;
+}
+
+static void __exit mod_exit(void)
+{
+   printk(KERN_INFO "radxa-overlays: Exit\n");
+}
+
+module_init(mod_init);
+module_exit(mod_exit);
+
+MODULE_LICENSE("GPL2");
+MODULE_AUTHOR("© 2022 Radxa Computer Co., Ltd");