tslib 未创建设备 [英] tslib not creating device

问题描述

我正在尝试将 tslib 嵌入 ARM 系统，以便使用触摸屏设备；我已经成功安装了它，但不幸的是我无法检索所有笔记以再次安装.x)

I am trying to embed tslib on an ARM system, in order to use a touchscreen device ; I already installed it successfully but unfortunately I can't retrieve all my notes to do it again. x)

我交叉编译了库文件，并将它们放入 /usr/lib ；我已经创建了 conf 文件 /etc/ts.conf 并且我已经导出了良好的环境变量:

I cross-compiled the libraries files, and I put them into /usr/lib ; I have created the conf file /etc/ts.conf and I have exported the good environment variables :

export TSLIB_TSDEVICE="/dev/event2"
export TSLIB_CONFFILE="/etc/ts.conf"

这是我的问题:当我插入设备时，tslib 似乎没有创建事件设备.这是 *ts_calibrate* 的结果:ts_open: No such file or directory

Here is my problem : tslib doesn't seem to create the event device when I plug the device in. And here is the result of *ts_calibrate* : ts_open: No such file or directory

我认为它试图打开不存在的 /dev/event2，因为它不是由 tslib 创建的.

I think it tries to open /dev/event2 which doesn't exist because it has not been created by tslib.

有什么想法吗?

谢谢

推荐答案

你有什么样的内核 + 用户空间?设备文件创建通常是内核热插拔 + udev 或 mdev 的工作.

What kind of kernel + userspace do you have ? device file creation is usually the job of kernel hotplug + udev or mdev.

无论如何，tslib 不应该创建设备文件.你有两个选择:

In any case, tslib is not supposed to create device file. You have two options :

• 手动创建设备，前提是您的 busybox 包含 mknod 实用程序:

• creating the device manually, provided your busybox contains the mknod utility :

mknod event2 c 13 66

其中 66 是次要编号，它应该比 event1 的次要编号多 1.

where 66 is the minor number, it should be one more than the minor number for event1.

启动 mdev -s 并查看/dev 目录的内容是否发生变化

launching mdev -s and see if the content of your /dev directory change

找出没有检测/创建通风设备的原因:请在启动后发布uname -a和dmesg的输出.

find out why the vent device is not detected / created : please post the output of uname -a, and dmesg after boot.

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