What's the simplest way to detect CDROM media removal and insertion in Linux? I want to write some simple code to handle this. For example, just bind an event for media insertion and implement the handler.
在Linux中检测CDROM介质删除和插入的最简单方法是什么？我想写一些简单的代码来处理这个问题。例如，只需绑定一个媒体插入事件并实现处理程序。
Thanks!
谢谢！
3 个解决方案
#1
2
Try man udev, or man hotplug.
试试man udev，或者man hotplug。
#2
1
The desktop 'standards' have options for this.
桌面“标准”有此选项。
For example I think Gnome uses dbus for this:
例如，我认为Gnome使用dbus：
http://www.linuxcertification.co.za/linux-training-sysfs-udev-hald-dbus
http://www.linuxcertification.co.za/linux-training-sysfs-udev-hald-dbus
[..] These applications are mainly used by desktop environment to carry out tasks when an event occurs such as open the file browser when a USB drive is inserted or image application when a camera is inserted.
[..]这些应用程序主要用于桌面环境，以便在发生事件时执行任务，例如在插入USB驱动器时打开文件浏览器或插入摄像机时的图像应用程序。
D-Bus is used for example to launch media players when a audio CD is inserted and to notify other applications of the currently playing song for example.
例如，D-Bus用于在插入音频CD时启动媒体播放器，并通知其他应用程序当前播放的歌曲。
Configuration
You could just have your desktop shell (e.g. Gnome/nautilus) call your application when the even happens:
你可以让你的桌面shell（例如Gnome / nautilus）在偶数发生时调用你的应用程序：
http://library.gnome.org/users/user-guide/stable/gosnautilus-61.html.en
http://library.gnome.org/users/user-guide/stable/gosnautilus-61.html.en
Non-desktop
For the non-desktop version of this, man udev is indeed your friend. Info on writing udev rules is here:
对于非桌面版本，man udev确实是你的朋友。有关编写udev规则的信息如下：
http://reactivated.net/writing_udev_rules.html
http://reactivated.net/writing_udev_rules.html
#3
0
The simplest way from user space is to grep the output of the mount command, provided you have configured the CDROM for automount ( in /etc/fstab).But if you want to have an asynchronous notification, you might need to look into udev rules and uevents.
从用户空间最简单的方法是grep mount命令的输出，前提是你已经为自动挂载配置了CDROM（在/etc/fstab中）。但是如果你想要一个异步通知，你可能需要查看udev规则和uevents。
#1
2
Try man udev, or man hotplug.
试试man udev，或者man hotplug。
#2
1
The desktop 'standards' have options for this.
桌面“标准”有此选项。
For example I think Gnome uses dbus for this:
例如，我认为Gnome使用dbus：
http://www.linuxcertification.co.za/linux-training-sysfs-udev-hald-dbus
http://www.linuxcertification.co.za/linux-training-sysfs-udev-hald-dbus
[..] These applications are mainly used by desktop environment to carry out tasks when an event occurs such as open the file browser when a USB drive is inserted or image application when a camera is inserted.
[..]这些应用程序主要用于桌面环境，以便在发生事件时执行任务，例如在插入USB驱动器时打开文件浏览器或插入摄像机时的图像应用程序。
D-Bus is used for example to launch media players when a audio CD is inserted and to notify other applications of the currently playing song for example.
例如，D-Bus用于在插入音频CD时启动媒体播放器，并通知其他应用程序当前播放的歌曲。
Configuration
You could just have your desktop shell (e.g. Gnome/nautilus) call your application when the even happens:
你可以让你的桌面shell（例如Gnome / nautilus）在偶数发生时调用你的应用程序：
http://library.gnome.org/users/user-guide/stable/gosnautilus-61.html.en
http://library.gnome.org/users/user-guide/stable/gosnautilus-61.html.en
Non-desktop
For the non-desktop version of this, man udev is indeed your friend. Info on writing udev rules is here:
对于非桌面版本，man udev确实是你的朋友。有关编写udev规则的信息如下：
http://reactivated.net/writing_udev_rules.html
http://reactivated.net/writing_udev_rules.html
#3
0
The simplest way from user space is to grep the output of the mount command, provided you have configured the CDROM for automount ( in /etc/fstab).But if you want to have an asynchronous notification, you might need to look into udev rules and uevents.
从用户空间最简单的方法是grep mount命令的输出，前提是你已经为自动挂载配置了CDROM（在/etc/fstab中）。但是如果你想要一个异步通知，你可能需要查看udev规则和uevents。