On Mon, 8 May 2000, Dan Nelson wrote:

> In the last episode (May 08), Warner Losh said:
> > In message <[EMAIL PROTECTED]> Matthew 
>Jacob writes:
> > : Oh, and in the updating of this, don't forget the FreeBSD usage of
> > : .ctl for tape devices- as far as I know this is the only *BSD that
> > : has this.
> > 
> > Which devices use .ctl?  sa and ast don't seem to use them now (at
> > the very least they aren't created by MAKEDEV by default).
> *.ctl is handy for getting status on a device that another process has
> open; if I'm dumping to /dev/nrsa0, I can run "mt -f /dev/rsa0.ctl
> status" on another tty and see what file/block position the tape is at. 
> Dunno if it has any other use :)

Eventually it will have/set more extended error information.

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