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To: linux-kernel@vger.kernel.org
From: Pasi Savolainen <psavo@iki.fi>
Subject: Re: Is controlling DVD speeds via SET_STREAMING supported?
Date: Sun, 28 Nov 2004 11:18:07 +0000 (UTC)
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* Thomas Fritzsche <tf@noto.de>:
> the error message you receive means that your device don't support the SET
> STREAMING command. But I'm wondering because an other user reported
> success with exactly the DVD model you have. Do you use the latest FW? Do
> you have any other special software / hardware setup that could explain
> this difference?

I updated firmware today to F506 (from F502). Same answer as before.

FWIW, the drive doesn't support setcd -command either.

> What Kernel do you use?

Linux tienel 2.6.10-rc2-mm1 #1 SMP Wed Nov 17 01:19:53 EET 2004 i686 GNU/Linux

Actually now that I rebooted (for DVD flashing) and started back into
linux, after running dvdspeed it also says:
"scsi: unknown opcode 0xb6" (which is SET_STREAMING). Code for this is
in drivers/block/scsi_ioctl.c, and if I read it right, it can't prevent
root from executing that command.

I modified your speed-1.0 to open device O_RDWR, didn't help.
I modified it to also dump_sense after CMD_SEND_PACKET, it's just
duplicate packet.


Thanks.
-- 
   Psi -- <http://www.iki.fi/pasi.savolainen>

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