Subject: Re: [Fwd: [linux-audio-dev] info point on linux hdr]
From: Stephen C. Tweedie (sct_AT_redhat.com)
Date: Sat Apr 15 2000 - 16:31:30 EEST
Hi,
On Sat, Apr 15, 2000 at 12:32:50PM +0200, Benno Senoner wrote:
> On Sat, 15 Apr 2000, Paul Barton-Davis wrote:
> > >PS: Does anyone know how to make a RAW I/O device on a spare disk partition,
> > >and then put an ext2 over it (running the whole partition in RAWIO mode) ?
> > >Is that possible ?
It's fundamentally impossible. The concepts are orthogonal.
There are four separate ways of getting access to a block device driver.
You can use a block device in /dev. You can use a raw IO device in
/dev/raw/ if you have a kernel which supports it. You can use the swap
code to access it as a swap partition. Or, finally, you can use the
filesystem code to access it as a filesystem. The same device driver
is used underneath in each case.
Running ext2 over a character mode device simply doesn't make sense:
it's the same device driver underneath, the behaviour wouldn't be
any different.
--Stephen
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