【luckfox】RV1106 Linux驱动测试

小麦克

【luckfox】RV1106 Linux驱动测试 [复制链接]

<div class='showpostmsg'># Linux驱动测试

测试一把最简单helloworld驱动程序，了解一下驱动编程的基本概念。源文件包含两个文件：helloworld.c和Makefile

```bash
➜helloworld tree
.
├── helloworld.c
├── Makefile

1 directory, 2 files
```

helloworld.c

```c
#include <linux/module.h>
#include <linux/init.h>

static int helloworld_init(void)
{
    printk("helloworld!\n");
    return 0;
}

static void helloworld_exit(void)
{
    printk("helloworld bye\n");
}

module_init(helloworld_init);
module_exit(helloworld_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Luckfox");
MODULE_VERSION("V1.0");
```

Makefile

```makefile
obj-m += helloworld.o
KDIR:=/home/bruce/Documents/luckfox-pico/sysdrv/source/kernel
PWD?=$(shell pwd)
MAKE := make
ARCH := arm
CROSS_COMPILE := /home/bruce/Documents/luckfox-pico/tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/bin/arm-rockchip830-linux-uclibcgnueabihf-
KBUILD_OUTPUT := $(abspath $(dir $(lastword $(KDIR))))/objs_kernel
all:
    echo KBUILD_OUTPUT = $(KBUILD_OUTPUT)
    $(MAKE) O=$(KBUILD_OUTPUT) -C $(KDIR) M=$(PWD) modules ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE)
    echo $(PWD)
clean:
    rm -f *.ko *.o *.mod *.mod.o *.mod.c *.symvers *.order
```

编译，查看生成的文件

<ignore_js_op>

<div class="tip tip_4 aimg_tip" id="aimg_883638_menu" style="position: absolute; display: none" disautofocus="true">
<div class="xs0">
<p><strong>image-20250124074158848.png</strong> <em class="xg1">(66.1 KB, 下载次数: 0)</em></p>
<p>
<a href="javascript:;" class="loginf" >下载附件</a>

<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_883638" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=883638&handlekey=savephoto_883638">保存到相册</a>

</p>

</div>
<div class="tip_horn"></div>
</div>

</ignore_js_op>

上传到板子测试

<ignore_js_op>

<div class="tip tip_4 aimg_tip" id="aimg_883639_menu" style="position: absolute; display: none" disautofocus="true">
<div class="xs0">
<p><strong>image-20250124080205835.png</strong> <em class="xg1">(23.31 KB, 下载次数: 0)</em></p>
<p>
<a href="javascript:;" class="loginf" >下载附件</a>

<a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_883639" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=883639&handlekey=savephoto_883639">保存到相册</a>

</p>

</div>
<div class="tip_horn"></div>
</div>

</ignore_js_op>

</div><script>					var loginstr = '<div class="locked">查看本帖全部内容，请<a href="javascript:;"   style="color:#e60000" class="loginf">登录</a>或者<a href="https://bbs.eeworld.com.cn/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">注册</a></div>';
					
					if(parseInt(discuz_uid)==0){
						
					}		</script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>

小麦克

helloworld.zip (805 Bytes, 下载次数: 0)

Jacktang

好吧，整下helloworld驱动程序

【luckfox】RV1106 Linux驱动测试 [复制链接]

最新回复