Messages in this thread | | | From | Pasi Savolainen <> | Subject | Unable to set reading speed with newer DVD -reader. | Date | Thu, 11 Mar 2004 21:32:33 +0000 (UTC) |
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Hi, There is a problem with setting DVD reading speed. I found a thread[1] dealing with this, but there is only a scarse mention about SET_STREAMING in <linux/cdrom.h>.
[1] http://groups.google.com/groups?threadm=20010627194127.H17905%40suse.de
Thanks. - - # uname -a Linux tienel 2.6.4-rc1-mm2 #1 SMP Fri Mar 5 18:22:38 EET 2004 i686 GNU/Linux - - # # Without DVD-Video -disk in reader # hdparm -E 4 /dev/dvd
/dev/dvd: setting cdrom speed to 4
- - # # With DVD-Video -disk in reader. # hdparm -E 4 /dev/dvd
/dev/dvd: setting cdrom speed to 4 CDROM_SELECT_SPEED failed: Input/output error - - # tail /var/log/messages ... Mar 11 23:11:07 tienel kernel: hdb: packet command error: status=0x51 { DriveReady SeekComplete Error } Mar 11 23:11:07 tienel kernel: hdb: packet command error: error=0x54 Mar 11 23:11:07 tienel kernel: ATAPI device hdb: Mar 11 23:11:07 tienel kernel: Error: Illegal request -- (Sense key=0x05) Mar 11 23:11:07 tienel kernel: Invalid field in command packet -- (asc=0x24, ascq=0x00) Mar 11 23:11:07 tienel kernel: The failed "Set Speed" packet command was: Mar 11 23:11:07 tienel kernel: "bb 00 02 c4 00 00 00 00 00 00 00 00 00 00 00 00 " - - # hdparm -I /dev/dvd
/dev/dvd:
ATAPI CD-ROM, with removable media Model Number: SAMSUNG DVD-ROM SD-616E Serial Number: Firmware Revision: F502 Standards: Used: ATAPI for CD-ROMs, SFF-8020i, r2.5 Supported: CD-ROM ATAPI-2 Configuration: DRQ response: 50us. Packet size: 12 bytes Capabilities: LBA, IORDY(can be disabled) DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 udma2 (?) Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns - -
-- Psi -- <http://www.iki.fi/pasi.savolainen>
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