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Re: Why do we need /dev
On 10/10/06, Greg KH <greg@xxxxxxxxx> wrote:
On Tue, Oct 10, 2006 at 12:07:49PM +0530, Jinesh K J wrote:
> Hi friends,
>
> I was just wondering why do we need a /dev directory for device files.
> Why can't those entries be handled by sysfs and kobjects?
You can not ignore POSIX, sorry.
I never knew (or realised) that device files are a part of POSIX. In
fact I've never gone through the POSIX standard.
> Also, the concepts of major and minor numbers - don't anyone think
> that they should not be a concern for a device driver programmer at
> all. I think they are outdated or unnecessary.
They aren't a concern anymore. Why do you think they are?
int register_chrdev_region(dev_t from, unsigned count, const char *name)
I really don't want to see a 'dev_t' up there (though I know that it
can be ignored). Those numbers should be dealt within the kernel. Why
would anyone wanna set those numbers manually?
thanks,
greg k-h
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