Re: ide-cd problems

[Jens Axboe]

On Fri, Jul 30 2004, Zinx Verituse wrote:
> I'm going to bump this topic a bit, since it's been a while..
> There are still some issues with ide-cd's SG_IO, listed from
> most important as percieved by me to least:
> 
>  * Read-only access grants you the ability to write/blank media in the drive
>  * (with above) You can open the device only in read-only mode.

That's by design. Search linux-scsi or this list for why that is so.

>  * You can't open the device unless there is media in the drive

False, you use O_NONBLOCK.

>  * Still seems to be no way to specify scatter gather/dma buffers yourself,
>    though I'm not entirely sure that matters anyway.

That's true, later implementation of block layer SG_IO adds that as
well. It's really a minor thing though, I don't think I've ever seen
anyone use it outside of regression testing scripts.

-- 
Jens Axboe

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