Re: PATCH: cdrecord: avoiding scsi device numbering for ide devices

From: Jens Axboe (axboe_at_suse.de)
Date: 08/10/04

  • Next message: Pavel Machek: "Re: [RFC] Fix Device Power Management States" 
    Date:	Tue, 10 Aug 2004 12:12:24 +0200
To: Erik Mouw <erik@harddisk-recovery.com>

    On Tue, Aug 10 2004, Erik Mouw wrote:
    > On Tue, Aug 10, 2004 at 10:41:59AM +0200, Matthias Andree wrote:
    > > It's not exactly fun if everything can do 48X but your favorite OS
    > > (Linux 2.4) is limited to say 8X because it only does PIO in spite of
    > > hdparm settings and everything else.
    >
    > FWIW, we burn CDs at 40x with a 2.4 kernel. It is however a hardware or
    > driver related issue: no problems whatsoever with VIA IDE interfaces,
    > but only PIO with the CD writer connected to a Promise 20268.

    It's not a problem with data CDs, it's only a problem with non-512b
    aligned sector sizes (like audio CDs). 

    -- 
Jens Axboe
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