USB devices: where are you?

MD3 · 04-25-2005, 07:22 AM

(Using Slackware 10.0)

i attached two devices to my two usb UHCI ports:

/proc/scsi/scsi:

Code:

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: RICOH    Model: DVD+RW MP5240    Rev: 1.11
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: BTC      Model: BCE1610IM        Rev: 0.19
  Type:   CD-ROM                           ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: OLYMPUS  Model: C2Z,D520Z,C220Z  Rev: 1058
  Type:   Direct-Access                    ANSI SCSI revision: 02
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: USB 2.0  Model: Mobile Disk N4S  Rev: 1.00
  Type:   Direct-Access                    ANSI SCSI revision: 02

it's right! there are 2 cd-rom and 2 usb-devs emulated as scsi!

/proc/scsi/usb-storage-0/1:

Code:

Host scsi1: usb-storage
Vendor: OLYMPUS
Product: C2Z,D520Z,C220Z
Serial Number: 150203871
Protocol: Transparent SCSI
Transport: Bulk
GUID: 07b401020000000150203871
Attached: Yes

this is right too! my first attached device is an OLYMPUS C220Z camera

/proc/scsi/usb-storage-1/2:

Code:

Host scsi2: usb-storage
Vendor: TTI-WDE
Product: USB 2.0 Mobile Disk
Serial Number: FF04112800920
Protocol: Transparent SCSI
Transport: Bulk
GUID: 126f1325000ff04112800920
Attached: Yes

right again! a TwinMOS Mobile Disk!

now... i can't manage mounting them (as i did with slack 9.1)...

Code:

# mount -t usbfs -o rw /dev/sda1 /mnt/usb1
# mount -t usbfs -o rw /dev/sda2 /mnt/usb2
# cd /mnt/usb1
# ls
001  002  devices  drivers
# cd /mnt/usb2
# ls
001  002  devices  drivers
# cd /proc/bus/usb
# ls
001  002  devices  drivers
 yes: it's the same!

what's wrong here? am i trying to mount the wrong devices? (/dev/sda Scsi Direct Access should b right) If you can suggest a way to found the minor number given to each usb-storage-? i will be able to compare it with the /dev/sda* ones and find out what's the right device ... or.... what else is my problem?

thanks

okmyx · 04-25-2005, 07:35 AM

Whats the output of dmesg when you connect the devices?

MD3 · 04-25-2005, 07:42 AM

Code:

hub.c: new USB device 00:04.2-1, assigned address 2
scsi1 : SCSI emulation for USB Mass Storage devices
  Vendor: OLYMPUS   Model: C2Z,D520Z,C220Z   Rev: 1058
  Type:   Direct-Access                      ANSI SCSI revision: 02
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
SCSI device sda: 32000 512-byte hdwr sectors (16 MB)
sda: Write Protect is off
 sda: sda1

and

Code:

hub.c: new USB device 00:04.2-2, assigned address 3
scsi2 : SCSI emulation for USB Mass Storage devices
  Vendor: USB 2.0   Model: Mobile Disk N4S   Rev: 1.00
  Type:   Direct-Access                      ANSI SCSI revision: 02
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 3
Attached scsi removable disk sdb at scsi2, channel 0, id 0, lun 0
SCSI device sdb: 507904 512-byte hdwr sectors (260 MB)
sdb: Write Protect is off
 sdb: sdb1

ok it's sda1 and sdb1 but..:

Code:

# mount -t usbfs -o rw /dev/sdb1 /mnt/usb2
# cd /mnt/usb2
# ls 
001  002  devices  drivers

the result is still this :'( any suggestion?

thanks and bye

MD3 · 04-25-2005, 10:35 AM

additional infos:

Code:

# lsusb
Bus 002 Device 001: ID 0000:0000
Bus 002 Device 002: ID 04a9:220b Canon, Inc. CanoScan D646U
Bus 001 Device 001: ID 0000:0000
Bus 001 Device 004: ID 07b4:0102 Olympus Optical Co., Ltd Camedia E-10/C-220 Camera
Bus 001 Device 003: ID 126f:1325
ok: there is my scanner (we are not interested in it at hte moment) and my camera.. where is the usb-pen?
# usbmodules --device /proc/bus/usb/001/004
no output

p.s. lsusb shows 5 devices... i have only 4... 2 + 2

makuyl · 04-25-2005, 10:40 AM

Are you sure the filesystem is usbfs? Try vfat and see what it says

MD3 · 04-26-2005, 07:21 AM

yes! u r right i mounted it with -t auto and it works! there was a strange think: the device /dev/sda1 had been deleted as i plugged the camera.. i hade to create it with mknod

cs-cam · 04-26-2005, 07:55 AM

USB devices don't use usbfs, usbfs is a special "filesystem" that reports kernel info about your devices. Things like cameras use proper filesystems, just like your hard disks. Most will use vfat since they're designed for Windows but some iPods use HFS+ which is a Mac filesystem but Windows can use it through iTunes.

MD3 · 04-26-2005, 04:59 PM

thanks for the explanation

towsonu2003 · 05-10-2005, 01:20 AM

I managed to mount my cdrw thanks to this post and dmesg. thanks so much!!!! Finally!!

barleykorn · 05-10-2005, 01:40 AM

try something like locate usb* or find usb*...This should tell you the directory path of what you are looking for. Then mount usb* once you find it.