[USB 2.0 problem] ASUS CD-RW cannot be mounted.

[USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Joseph]

Hi,
  I've tested ASUS USB2.0 CD-RW 40x/12x/48x under 2.5.53.
  The CD-RW device cannot be mounted.  but it shows in
/proc/scsi/usb-storage-0/0.
  Run "cat /proc/scsi/usb-storage-0/0", I got
***
  Host scsi0: usb-storage
  Vendor: ASUSTek ODD
  Product: USB Storage Device
  Serial Number: 7438401210600019
  Protocol: Transparent SCSI
  Transport: Bulk
  GUID: 282150017438401210600019
  Attached: Yes
***
  Run "dmesg", I got
****
drivers/usb/core/hcd.c: new USB bus registered, assigned bus number 1
ehci-hcd 00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2002-Nov-29
hub 1-0:0: USB hub found
hub 1-0:0: 6 ports detected
hub 1-0:0: debounce: port 5: delay 100ms stable 4 status 0x501
hub 1-0:0: new USB device on port 5, assigned address 2
scsi0 : SCSI emulation for USB Mass Storage devices
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
input: PS/2 Logitech Mouse on isa0060/serio1
input: PS/2 Logitech Mouse on isa0060/serio1
****
Any idea? Thank in advance.

Best Regards,
             Joseph(@@)

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Re: [USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Greg KH]

On Thu, Dec 26, 2002 at 07:35:43PM +0800, Joseph wrote:
> Hi,
>   I've tested ASUS USB2.0 CD-RW 40x/12x/48x under 2.5.53.

Are you sure you have all of the scsi modules you need loaded?  The
dmesg output looks fine, what happens when you try to mount the drive?

And does this drive work with older 2.5 kernels, or 2.4?

thanks,

greg k-h

Re: [USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Joseph]

> Are you sure you have all of the scsi modules you need loaded?  The
> dmesg output looks fine, what happens when you try to mount the drive?
> And does this drive work with older 2.5 kernels, or 2.4?

  I think I've made all scsi modules I need built-in kernel.
  (usbcore, ehci-hcd, usb-storage, sr_mod, sd_mod) Do I miss something?
  Also, I've tested the ASUS CD-RW under kernel 2.5.45 and it worked.
  But in the kernel 2.5.53, the system shows below when I try to mount the
CD-RW.
**   #mount /dev/scd0 /mnt/usb-cd
**   mount: /dev/scd0 is not a valid block device
  There is one thing I forgot to say before.
  I've checked the /proc/scsi/scsi file by running "cat" when I pluged the
device, and it shows below.
** Attached devices: none
 Thanks in advance.
BR,
  Joseph

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Re: [USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Eyal Lebedinsky]

Joseph wrote:
> 
> > Are you sure you have all of the scsi modules you need loaded?  The
> > dmesg output looks fine, what happens when you try to mount the drive?
> > And does this drive work with older 2.5 kernels, or 2.4?
> 
>   I think I've made all scsi modules I need built-in kernel.
>   (usbcore, ehci-hcd, usb-storage, sr_mod, sd_mod) Do I miss something?
>   Also, I've tested the ASUS CD-RW under kernel 2.5.45 and it worked.
>   But in the kernel 2.5.53, the system shows below when I try to mount the
> CD-RW.
> **   #mount /dev/scd0 /mnt/usb-cd
> **   mount: /dev/scd0 is not a valid block device

Check that you actually have /dev/scd0. I think it should be:
	# mknod /dev/scd0 b 11 0

--
Eyal Lebedinsky (eyal@eyal.emu.id.au) <http://samba.org/eyal/>

Re: [USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Joseph]

> Check that you actually have /dev/scd0. I think it should be:
> # mknod /dev/scd0 b 11 0
> 
 I've checked the node as follows.
#ls -l /dec/scd0
brw-r----- 1 root  disk 11,  0 Sep 9 13:24 /dev/scd0

Any idea? Thanks in advance.
BR,
 Joseph

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Re: [USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Point Free]

At Fri, 27 Dec 2002 16:55:19 +0800
"Joseph" <jospehchan@yahoo.com.tw> wrote:

> > Check that you actually have /dev/scd0. I think it should be:
> > # mknod /dev/scd0 b 11 0
> > 
>  I've checked the node as follows.
> #ls -l /dec/scd0
> brw-r----- 1 root  disk 11,  0 Sep 9 13:24 /dev/scd0
> 

Ouh, could you post your /proc/devices ?

Re: [USB 2.0 problem] ASUS CD-RW cannot be mounted.

[Joseph]

> > > Check that you actually have /dev/scd0. I think it should be:
> > > # mknod /dev/scd0 b 11 0
> > >
> >  I've checked the node as follows.
> > #ls -l /dec/scd0
> > brw-r----- 1 root  disk 11,  0 Sep 9 13:24 /dev/scd0

> Ouh, could you post your /proc/devices ?

Yeah, that is shown below.
BTW, the ehci-hcd module seems instable. because the CD-RW can work
sometimes.
But it cannot work sometimes. So curiously. ?_?
**
Character devices:
  1 mem
  2 pty
  3 ttyp
  4 vc/%d
  5 ptmx
  6 lp
  7 vcs
 10 misc
 13 input
 14 sound
 21 sg
116 alsa
128 ptm
136 pts
180 usb
226 drm

Block devices:
  2 fd
  3 ide0
  8 sd
 11 sr
 22 ide1
 65 sd
 66 sd
 67 sd
 68 sd
 69 sd
 70 sd
 71 sd
136 sd
137 sd
138 sd
139 sd
140 sd
141 sd
142 sd
143 sd
***

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