Since I've been using udev I'm experiencing the following problem.
I've got 2 rom devices, a nec3500 dvd-writer (/dev/hdd) and a lite-on
48x cd-writer (/dev/hdd); the problem is that the dvd tries to access a
media also if there's nothing inside.
"dmesg | tail" outputs:
cdrom: This disc doesn't have any tracks I recognize!
hdd: status error: status=0xd8 { Busy }
ide: failed opcode was: unknown
hdd: ATAPI reset complete
hdd: status error: status=0xd8 { Busy }
ide: failed opcode was: unknown
hdd: ATAPI reset complete
hdd: status error: status=0xd8 { Busy }
ide: failed opcode was: unknown
hdd: ATAPI reset complete
"cd-drive -i /dev/hdd", when no media inserted, outputs:
cd-drive version 0.73 i686-pc-linux-gnu
Copyright (c) 2003, 2004, 2005 R. Bernstein
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Drivers available...
GNU/Linux ioctl and MMC driver
cdrdao (TOC) disk image driver
bin/cuesheet disk image driver
Nero NRG disk image driver
Drive /dev/hdd
++ WARN: open (/dev/hdd): No medium found
++ WARN: open (/dev/hdd): No medium found
Uknown drive hardware properties
Uknown drive reading properties
Uknown drive writing properties
"cd-drive -i /dev/hdd", when media IS inserted, outputs:
cd-drive version 0.73 i686-pc-linux-gnu
Copyright (c) 2003, 2004, 2005 R. Bernstein
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Drivers available...
GNU/Linux ioctl and MMC driver
cdrdao (TOC) disk image driver
bin/cuesheet disk image driver
Nero NRG disk image driver
Drive /dev/hdd
Vendor : _NEC
Model : DVD_RW ND-3500AG
Revision : 2.FD
Profile List Feature
DVD+R Double Layer - DVD Recordable Double Layer
DVD+R - DVD Recordable
DVD+RW - DVD ReWritable
Re-recordable DVD using Sequential recording
Re-recordable DVD using Restricted Overwrite
Re-recordable DVD using Sequential recording
Read only DVD
CD-RW Re-writable Compact Disc capable
Write once Compact Disc capable - on
Core Feature
ATAPI interface
Morphing Feature
Operational Change Request/Notification not supported
Synchronous GET EVENT/STATUS NOTIFICATION supported
Removable Medium Feature
Tray type loading mechanism
can eject the medium or magazine via the normal START/STOP command
can be locked into the Logical Unit
Write Protect Feature
Random Readable Feature
Multi-Read Feature
CD Read Feature
C2 Error pointers are supported
CD-Text is supported
DVD Read Feature
Random Writable Feature
Incremental Streaming Writable Feature
Formattable Feature
Restricted Overwrite Feature
DVD+RW Feature
DVD+R Feature
Rigid Restricted Overwrite Feature
CD Track at Once Feature
CD Mastering (Session at Once) Feature
DVD-R/RW Write Feature
CD-RW Media Write Support Feature
DVD+R Double Layer Feature
Initiator- and Device-directed Power Management Feature
CD Audio External Play Feature
SCAN command is supported
audio channels can be muted separately
audio channels can have separate volume levels
256 volume levels can be set
Ability to respond to all commands within a specific time Feature
Ability to perform DVD CSS/CPPM authentication via RPC Feature
CSS version 1
Ability to read and write using Initiator requested performance
parameters Feature
Vendor-specific code 29de Feature
Hardware : CD-ROM or DVD
Can eject : Yes
Can close tray : Yes
Can disable manual eject : Yes
Can select juke-box disc : No
Can set drive speed : No
Can read multiple sessions (e.g. PhotoCD) : Yes
Can hard reset device : Yes
Reading....
Can read Mode 2 Form 1 : Yes
Can read Mode 2 Form 2 : Yes
Can read (S)VCD (i.e. Mode 2 Form 1/2) : Yes
Can read C2 Errors : Yes
Can read IRSC : Yes
Can read Media Channel Number (or UPC) : Yes
Can play audio : Yes
Can read CD-DA : Yes
Can read CD-R : Yes
Can read CD-RW : Yes
Can read DVD-ROM : Yes
Writing....
Can write CD-RW : Yes
Can write DVD-R : Yes
Can write DVD-RAM : No
Can write DVD-RW : No
Can write DVD+RW : No
which is better but is wrong because this is a DVD+-RW writer. The
problem is the access to nothing. I've recently changed the firmware for
this writer to support bette +-RW and in windows that's works perfectly.
Do you have any advices or tests to do?
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