[lug] support for raw i/o

Paul Walmsley shag-blug at booyaka.com
Wed May 8 17:44:21 MDT 2002

On 8 May 2002, Hugh Brown wrote:

> How can I tell if raw i/o is part of the default kernel for redhat?
> I'd like to learn where to look (not just be told yes/no).
> I tried grep -i raw * in the configs directory and it all seemed related
> to firewire.  I do have /dev/raw/  but I know the presence of a device
> node under /dev doesn't mean that it is supported.  Google just says 2.4
> supports raw i/o but I haven't seen much on how to configure it, etc.
> Still looking.

to expand briefly on the document that Rob posted, running 'raw -qa' as
root should fail if raw device support is not present.  i don't believe
that there is a specific kernel configuration option for raw devices.

- Paul

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