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SubjectRe: GetASF failed on DVD authentication
On Fri, Jan 02 2004, Jeff Chua wrote:
>
> Got the following error while authenticating DVD ...
>
> GetASF failed
> N/A, invalidating: Function not implemented
> N/A, invalidating: Function not implemented
> N/A, invalidating: Function not implemented
> Request AGID [1]... Request AGID [2]... Request AGID [3]...
> Cannot get AGID
>
>
> This error happens only on USB DVD drive using /dev/scd0 ...
>
> Linux version is 2.4.24-pre3.
>
>
> Module Size Used by Tainted: P
> ehci-hcd 15368 0 (unused)
> usb-storage 23800 0
> usbcore 56672 1 [ehci-hcd usb-storage]
> ds 6504 2
> yenta_socket 9568 2
> isofs 17580 0 (autoclean)
> loop 8408 0 (autoclean)
> sr_mod 12560 0 (autoclean)
> cdrom 27296 0 (autoclean) [sr_mod]
> scsi_mod 86472 2 (autoclean) [usb-storage sr_mod]
>
>
>
> Problem does not happen on _real_ IDE DVD drive (/dev/hdc). Could it be
> something to do with usb-storage or the sg module? Looks like the code
> does not implement the DVD_LU_SEND_ASF DVD_AUTH ioctl?

sr passes those ioctls through, or rather the uniform layer handles
them.

I can't say what goes wrong from the info above. Do you get any kernel
messages?

> Is there a patch for this?

Good one ;) Please make a proper bug report, you don't even include
drive info.

--
Jens Axboe

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