2011年2月27日 · mknod is deprecated; you should not be using it. If you want to create a FIFO, use the standard mkfifo. If you want to create an ordinary file, use creat or open with O_CREAT. Yes mknod can create device nodes, and on some systems might still be the way to do it, but on a modern Linux system you rely on the kernel and/or udevd to handle this.

2014年11月8日 · mknod is normally used for creating device nodes (special directories). However, some OSs do support creating a regular directory with mknod (QNX). Did you check the man page for mknod on the OS you're using? I am quite sure that S_IFDIR is a non-portable option for mknod.

2022年11月12日 · Note that mknod() can be used to create other device types than just FIFOs. It can create block special and character special devices. It can create block special and character special devices. Once upon a very (very, very) long time ago, mknod() was used to create directories too — in the days before there was a mkdir() or rmdir() system call.

A device node created by mknod is just a file that contains a device major and minor number. When you access that file the first time, Linux looks for a driver that advertises that major/minor and loads it. Your driver then handles all I/O with that file.

2015年10月30日 · There's no direct equivalent for POSIX mknod on Windows. Devices use the \\.\ prefix. Device names are created per logon via DefineDosDevice, but the actual device object target is created by the driver. For example, \\.\nul links to native \Device\Null. –

2018年3月19日 · No you can't use mknod and rm cli's from kernel space. These are bash commands. But other option exists to create and remove the device node file of your module from kernel space. In module init function you can use class_create() and then device_create() functions after doing registration for you device.

I just used the #include's the man page for mknod said to use. That seems like the best course of action. That seems like the best course of action. If I remove everything other than #include <fcntl.h> it still seems to work, although there are of course a number of warnings.

2015年9月21日 · This is what the case is with os.mknod on Windows. Creating named pipes in Windows has, as far as I can understand, very different semantics. Either way, if you are trying to use mknod to create named pipes you'd probably be …

The list is called the LANANA Linux Device List, and it is administered by Alan Cox.. You can find the latest copy online (direct link), or in the Linux source.

As you can see that for declaration of mknod() function to stay after preprocessing stage, one of three macros (__USE_MISC, __USE_BSD, __USE_XOPEN_EXTENDED) should be defined. Otherwise, declaration of mknod() will be removed during preprocessing stage.