cdrecord -scanbus shows incorrect device (external USB CD-RW)

Avatar · 04-08-2004, 01:37 PM

I am not sure what the cause of this is. I have attached a Micro Solutions, Inc. Backpack external CD-RW USB device to my Linux server. I installed the driver from the Micro solutions website. Hotplug identifies the correct manufacturer code (0x0ac9).

Here's the output of:

Code:

[root@localhost etc]# cat /proc/scsi/usb-storage-0/1
   Host scsi1: usb-storage
       Vendor: Micro Solutions
      Product: Micro Solutions BACKPACK
Serial Number: None
     Protocol: Transparent SCSI
    Transport: Bulk
         GUID: 0ac910ff0000000000000000
     Attached: Yes

and

Code:

[root@localhost etc]# lsusb
Bus 001 Device 001: ID 0000:0000
Bus 001 Device 005: ID 0ac9:10ff

BUT... (and this is a total mystery...)

Code:

[root@localhost etc]# cat /proc/scsi/scsi
Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: MITSUMI  Model: CR-487ETE        Rev: 001J
  Type:   CD-ROM                           ANSI SCSI revision: 02

AND...

Code:

[root@localhost etc]# cdrecord --scanbus
Cdrecord 1.11a15 (i586-mandrake-linux-gnu) Copyright (C) 1995-2001 Jörg Schilling
Linux sg driver version: 3.1.22
Using libscg version 'schily-0.5'
scsibus1:
        1,0,0   100) 'MITSUMI ' 'CR-487ETE       ' '001J' Removable CD-ROM
        1,1,0   101) *
        1,2,0   102) *
        1,3,0   103) *
        1,4,0   104) *
        1,5,0   105) *
        1,6,0   106) *
        1,7,0   107) *

aaah! what gives? why isnt my scsi device and my usb-storage device the same?

Code:

[root@localhost etc]# lsmod
Module                  Size  Used by    Not tainted
isofs                  26240   1  (autoclean)
inflate_fs             19520   0  (autoclean) [isofs]
usb-storage            53676   1
sr_mod                 15160   2  (autoclean)
ide-scsi                8544   0
bpck                    9088   0  (unused)
paride                  3776   1  [bpck]
parport                25440   0  [paride]
sd_mod                 11676   0  (autoclean) (unused)
vfat                    9916   0  (autoclean)
fat                    32408   0  (autoclean) [vfat]
nls_cp437               4352   1  (autoclean)
nls_iso8859-1           2848   2  (autoclean)
smbfs                  35680   1  (autoclean)
sg                     31204   0  (autoclean)
scsi_mod               95176   5  (autoclean) [usb-storage sr_mod ide-scsi sd_mod sg]
ipt_MASQUERADE          1600   1  (autoclean)
ipt_LOG                 3776   3  (autoclean)
ipt_limit               1280   0  (autoclean)
ipt_REDIRECT             992   1  (autoclean)
ipt_REJECT              3296   0  (autoclean)
ipt_TCPMSS              2720   0  (autoclean)
ipt_state                864   2  (autoclean)
iptable_mangle          2336   0  (autoclean) (unused)
ip_nat_irc              2944   0  (unused)
ip_nat_ftp              3552   0  (unused)
iptable_nat            17108   3  [ipt_MASQUERADE etc...]
ip_conntrack_irc        2976   0  [ip_nat_irc]
ip_conntrack_ftp        3872   0  [ip_nat_ftp]
ip_conntrack           16844   4  [ipt_MASQUERADE etc...]
iptable_filter          1952   1  (autoclean)
ip_tables              12256  12  [ipt_MASQUERADE etc...]
ppp_synctty             5600   0  (unused)
ppp_async               6912   1
ppp_generic            22792   3  [ppp_synctty ppp_async]
slhc                    5088   0  [ppp_generic]
af_packet              13896   3  (autoclean)
usb-ohci               19808   0  (unused)
usbcore                62080   1  [usb-storage usb-ohci]
bcm5700               104804   2
rtc                     6680   0  (autoclean)
ext3                   65292   2
jbd                    42716   2  [ext3]

Avatar · 04-14-2004, 08:24 AM

so how can I change my SCSI information to match the actual device?

maroonbaboon · 04-14-2004, 09:53 AM

What's the prob? I'm guessing Mitsumi make the drive mechanism and Micro Solutions the packaging and USB interface, and different bits respond to different protocol requests.

Are there any difficulties in using the device?