Message-ID: <001501c06e1f$3ce29e20$ad4d57cb@spunky>
From: "JB" <jamesb AT northnet DOT com DOT au>
To: <djgpp-workers AT delorie DOT com>
References: <3A460B93 DOT 2347528B AT bigfoot DOT com> <2110-Sun24Dec2000202824+0200-eliz AT is DOT elta DOT co DOT il> <200012242003 DOT PAA29486 AT envy DOT delorie DOT com> <003101c06ded$c2781420$9f4d57cb AT spunky> <3A4682D0 DOT EF56B1B5 AT bigfoot DOT com>
Subject: Re: An implementation of /dev/zero for DJGPP
Date: Mon, 25 Dec 2000 14:03:19 +1100
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Reply-To: djgpp-workers AT delorie DOT com

Cheers, thanks for taking time to explain this to me. :)

James Buchanan

----- Original Message -----
From: "Richard Dawe" <richdawe AT bigfoot DOT com>
To: <djgpp-workers AT delorie DOT com>
Sent: Monday, December 25, 2000 10:12 AM
Subject: Re: An implementation of /dev/zero for DJGPP


> Hello.
>
> JB wrote:
> > If /dev/zero can be used on Windoes, does that mean things like
> > /dev/floppy, /dev/cdrom, /dev/modem even, can be used also?
>
> The code I posted implements /dev/zero - that is, there is no /dev/zero
> present on DOS/Windows, so we have to simulate it ourselves. DJGPP's FSEXT
> mechanism is good for things like this. FSEXTs are a very nice feature of
> DJGPP.
>
> /dev/cdrom is just an alias for whatever drive is the cdrom. Under Linux
> /dev/cdrom is usually just a symlink to whatever device is the cdrom
> drive, e.g. /dev/hdc or /dev/scd0. Likewise for /dev/floppy, e.g. it maps
> to /dev/fd0.
>
> I think /dev/floppy would require an FSEXT to read sectors from the disk.
> /dev/modem might map directly to COM1: or COM2:, but then I've never
> really done any serial port programming, so I don't really know.
>
> Bye, Rich =]
>
> --
> Richard Dawe
> [ mailto:richdawe AT bigfoot DOT com | http://www.bigfoot.com/~richdawe/ ]
>