Re: why mknod() ??
mknod is also used by unified device management system for dynamic creation of special device files in /dev. Whenever new device is attached to system the plug and play framework calls this program to create device interface. On Tue, Sep 21, 2010 at 3:52 PM, Manish Katiyar wrote: > On Tue, Sep 21, 2010 at 8:06 AM, mohit verma > wrote: > > hey guys, > > i have a question silly question : > > > > as we can create the simple files with open,creat and for directories > there > > is mkdir system calls. > > so what is the need of mknod() to create special files and as well as " > > ordinary files" ? > > why can't we wrap the special file building code in one of open,creat > or > > mkdir system calls? > > > > Because they are special files and some of the commands/operations > (eg.. truncate) may not be available for them. If you look at the > implementation if is kind of a wrapper over regular create. > > > > -- > Thanks - > Manish > == > [$\*.^ -- I miss being one of them > == > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecar...@nl.linux.org > Please read the FAQ at http://kernelnewbies.org/FAQ > > -- Regards, Sri.
Re: why mknod() ??
On Tue, Sep 21, 2010 at 8:06 AM, mohit verma wrote: > hey guys, > i have a question silly question : > > as we can create the simple files with open,creat and for directories there > is mkdir system calls. > so what is the need of mknod() to create special files and as well as " > ordinary files" ? > why can't we wrap the special file building code in one of open,creat or > mkdir system calls? > Because they are special files and some of the commands/operations (eg.. truncate) may not be available for them. If you look at the implementation if is kind of a wrapper over regular create. -- Thanks - Manish == [$\*.^ -- I miss being one of them == -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecar...@nl.linux.org Please read the FAQ at http://kernelnewbies.org/FAQ
why mknod() ??
hey guys, i have a question silly question : as we can create the simple files with open,creat and for directories there is mkdir system calls. so what is the need of mknod() to create special files and as well as " ordinary files" ? why can't we wrap the special file building code in one of open,creat or mkdir system calls?
