Re: [linux-usb-devel] Re: [PATCH 2.6.14] usb-storage: sat passthru sense size compatibility

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On Thu, 8 Dec 2005, Matthew Dharm wrote:

> Ugh.  Is there no way to convince the SCSI people to add an autosense
> request size field to the SRB?

This question belongs on the linux-scsi list (CC'ed).

Unless I'm mistaken, this feature would require a modification to the
block layer's struct request, since that is how all I/O requests are sent
to the SCSI core.  Perhaps Jens Axboe would be open to such modifications 
and perhaps not -- struct request is already pretty big.

> History has told us that doing much of anything based on cmnd[0] is a
> good way to get bitten very badly...

Agreed.

Alan Stern

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