=?gb2312?B?u9i4tDogaG93IHRvIG1ha2UgbW9yZSB0aGFuIDI1NiBwdHkvdHR5ID8=?=

Yin Dadian (yindd@bupt.edu.cn)
Sun, 31 May 1998 07:05:14 +0800

I looked for the file drivers/char/tty_io.c include/linux/tty.h
such so. I found that there seems have no limit on function
tty_open() tty_releave() .... These functions work with major and
minor .So if i can make more the 256 pty/tty , i can use them.
But when i use "mknod ptyA0 c 2 256" which means i want to make
a device ptyA0 with major=2 and minor=256 , "mknod" changed minor
"256" into "1" (256-255). if you use "mknod ptyA0 c 2 514" , you
will get minor "4" (514-255*2).
So i want to see its source "mknod" ,but i can't find it.
Who has this file "mknod.c" or such as this ? Can you give me a
copy ?
Thanks a lot...

-----Original Message-----
发件人: Aaron M. Ucko <amu@MIT.EDU>
收件人: Yin Dadian <yindd@bupt.edu.cn>
抄送: linux-kernel@vger.rutgers.edu <linux-kernel@vger.rutgers.edu>
日期: 1998年5月31日 5:16
主题: Re: how to make more than 256 pty/tty ?

>There's no way around that limit short of modifying
>drivers/char/tty.c; I don't know how much work that would entail,
>though. At any rate, I'd strongly recommend looking into alternative
>solutions involving multiple servers; even if you could get more than
>256 users remotely logged in to your machine at once, I expect it
>would be far too heavily loaded for anyone to get anything done.
>
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