Does register_chrdev function make device file under /dev ?

[Kernel]

> On Mar 10, 2014, at 10:25 PM, 김찬 <ckim at etri.re.kr> wrote:
> 
> Hi,
>  
> This should be a basic question.
> Does the regisetr_chrdev function make the device file under /dev directory?
> I am running linux on our embedded system and inside vcs_init, register_chrdev is called as below.
>  
> int __init vcs_init(void)
> {
>         unsigned int i;
>         if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
>                 panic("unable to get major %d for vcs device", VCS_MAJOR);
>  
> I can see the function is returning ok but I don't see any vcs* file under /dev.
> Does it only register the device on /sys or /proc directory and not under /dev?
> Thanks in advance.
>  
> Chan
>  

You have to create a device file using 'mknod'

Ex: mknod -m 666 /dev/vcs c <major no> <minor no>


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