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Hello all,

I want to create my own filesystem on a flash memory card. How can I
open the card as a raw character device?

On a unix-like system I can just open /dev/hdx as a file and do
whatever I want. How can I achieve the same thing under MS DOS or
Windows 98?

Thanks!

Hof

In article < .com>,
<> wrote:
>I want to create my own filesystem on a flash memory card. How can I
>open the card as a raw character device?

filesystems and flash memory cards and raw character devices
are all system-specific, not mentioned by the standard C language.


>On a unix-like system I can just open /dev/hdx as a file and do
>whatever I want. How can I achieve the same thing under MS DOS or
>Windows 98?

You'd need to ask in a system specific newsgroup. All that
C provides is fopen() with a "b" modifier on the file mode
(to indicate binary). Determining the correct filename to open
(or whatever else needs to be done to get a hook to the device)
is system specific.
--
Is there any thing whereof it may be said, See, this is new? It hath
been already of old time, which was before us. -- Ecclesiastes

In article < .com>,
<> wrote:
>Hello all,
>
>I want to create my own filesystem on a flash memory card. How can I
>open the card as a raw character device?
>
>On a unix-like system I can just open /dev/hdx as a file and do
>whatever I want. How can I achieve the same thing under MS DOS or
>Windows 98?

Let me just say, with all sincerity and love:

Off topic. Not portable. Cant discuss it here. Blah, blah, blah.

Useful clc-related links:

http://en.wikipedia.org/wiki/Aspergers
http://en.wikipedia.org/wiki/Clique
http://en.wikipedia.org/wiki/C_programming_language

On 2 May, 18:48, rober...@ibd.nrc-cnrc.gc.ca (Walter Roberson) wrote:
> In article <1178127733.755392.297...@e65g2000hsc.googlegroups .com>,
>
> <rxhof...@yahoo.co.uk> wrote:
> >I want to create my own filesystem on a flash memory card. How can I
> >open the card as a raw character device?
>
> filesystems and flash memory cards and raw character devices
> are all system-specific, not mentioned by the standard C language.
>
> >On a unix-like system I can just open /dev/hdx as a file and do
> >whatever I want. How can I achieve the same thing under MS DOS or
> >Windows 98?
>
> You'd need to ask in a system specific newsgroup. All that
> C provides is fopen() with a "b" modifier on the file mode
> (to indicate binary). Determining the correct filename to open
> (or whatever else needs to be done to get a hook to the device)
> is system specific.
> --
> Is there any thing whereof it may be said, See, this is new? It hath
> been already of old time, which was before us. -- Ecclesiastes



Thanks, Walter. Apologies for the off-topic post - I wondered if there
was some strange and wonderful system call provided on DOS platforms
that C experts would be familiar with. All the DOS newsgroups seem to
have very little activity.

Regards,

Hof