删除设备文件的回调
当设备文件从系统中删除时，linux和solaris设备驱动程序中是否有回调函数会被调用？例如，如果卷管理器删除卷，它会删除该设备的块和字符设备接口。 linux和solaris中是否有像open，close，策略调用这样的回调，当块/字符设备删除完成时会被调用？
Is there in any call back in linux and solaris device driver which will be called when the device file is removed from the system? Example if a volume is deleted by the volume manager, it deletes the block and char device interface for that device. Is there any callback in linux and solaris like open,close,strategy call which will be called when the deletion of block/char device is done?
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设备文件与任何其他文件非常相似，因此您应该能够使用 inotify 来观看对于它们的出现和/或消失。
Device files are much the same as any other file, so you should be able to use inotify to watch for them appearing and/or disappearing.