Re: Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH]device arguments from lookup)

Alexander Viro
2001-05-23T04:51:04Z

On Wed, 23 May 2001, Edgar Toernig wrote:

> And with special "ctrl" devices (ie /dev/ttyS0 and /dev/ttyS0ctrl):
> This _may_ work for some kind of devices. But serial ports are one
> example where it simply will _not_. It requires that you know the

That's quite funny, you know...

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From: Dennis Ritchie (dmr@bell-labs.com)
Subject: Re: Plan 9 (was Re: Rubouts)
Newsgroups: alt.folklore.computers
Date: 1998/10/12

Neil Franklin wrote:
>
> No ioctl()s?
>
> Something like: echo "38400,8,n,1" > /ioctrl/ttyS0 ?
>
> Now that would be cool.
>
Exactly like that, though it would be /dev/eia80ctl .
No ioctl().

> Is there anyone who has an URL about Plan 9. Code download?
>

http://plan9.bell-labs.com/plan9

Dennis
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