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Old 05-30-2005, 01:28 AM   #1
ashlock
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Registered: Jul 2003
Distribution: Fedora Core 2, RH 9
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USB thumb drive detected by usb but not by scsi


I have a creative muvo 128mb flash drive/mp3 player that I'm trying to use with an Inspiron 8600 with FC2, kernel 2.6.9. When I plug it in, lsusb gives

Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 003: ID 041e:411c Creative Technology, Ltd
Bus 001 Device 001: ID 0000:0000


---------------------
and lsusb -v -s 001:003 gives

Bus 001 Device 003: ID 041e:411c Creative Technology, Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x041e Creative Technology, Ltd
idProduct 0x411c
bcdDevice 11.11
iManufacturer 1 CREATIVE
iProduct 2 MuVo USB2.0
iSerial 3 0002F5CA3D754C83
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4 Media
bmAttributes 0x80
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 5 Internal Flash Device
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Language IDs: (length=4)
0409 English(US)

-----------------------------------
dmesg shows
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb 1-1: new high speed USB device using address 3
uba: device 3 capacity nsec 250368 bsize 512
uba: was not changed
uba: uba1

but cat /proc/scsi/scsi shows no attached devices. How do I get it to show up in /proc/scsi/scsi?

I have put the following in /etc/modules

uhci_hcd
usb-uhci
ehci_hcd
scsi_mod
usb_storage
vfat
i8k -force

but the modules usb_storage and sometimes scsi_mod won't be loaded unless the muvo is plugged in on boot.

I thought the modules listed in /etc/modules would always be loaded at boot, why isn't this true?


no mount commands work either;

[root@localhost ashlock]# mount -t vfat /dev/sda1 /mnt/muvo
mount: /dev/sda1 is not a valid block device

because the muvo is not even being associated as sda1 since /proc/scsi/scsi is empty

[root@localhost ashlock]# mount -t usbfs /dev/sda1 /mnt/muvo
[root@localhost ashlock]# ls /mnt/muvo/
001 002 003 004 devices

which just mounts and empty usbfs on /mnt/muvo


Here is the output of lsmod

Module Size Used by
sd_mod 18688 0
vfat 13952 0
fat 48160 1 vfat
usb_storage 68160 0
scsi_mod 130636 2 sd_mod,usb_storage
snd_intel8x0 37836 0
snd_ac97_codec 71504 1 snd_intel8x0
snd_pcm 112776 1 snd_intel8x0
snd_timer 34180 1 snd_pcm
snd_page_alloc 10376 2 snd_intel8x0,snd_pcm
gameport 5504 1 snd_intel8x0
snd_mpu401_uart 10368 1 snd_intel8x0
snd_rawmidi 29732 1 snd_mpu401_uart
snd_seq_device 8712 1 snd_rawmidi
fglrx 229116 9
agpgart 33216 0
parport_pc 26816 0
lp 12524 0
parport 46408 2 parport_pc,lp
autofs4 27780 0
ds 18692 2
yenta_socket 20352 0
pcmcia_core 66628 2 ds,yenta_socket
sunrpc 181732 1
b44 26244 0
mii 5120 1 b44
snd_mixer_oss 19584 0
snd 60004 8 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_mixer_o ss
soundcore 11232 1 snd
i8k 6416 0
ipt_state 2176 1
ip_conntrack 45492 1 ipt_state
ipt_REJECT 7296 4
iptable_filter 3200 1
ip_tables 18048 3 ipt_state,ipt_REJECT,iptable_filter
microcode 7200 0
dm_mod 61460 0
uhci_hcd 34704 0
ehci_hcd 36356 0
ext3 120552 2
jbd 88728 1 ext3


this is driving me nuts. I have used linux since 1996 but the number of hours I have spent trying to do the simplest things like mount a thumb drive and use a projector via dual head have been making me consider going to the dark side.

Last edited by ashlock; 05-30-2005 at 01:33 AM.
 
Old 05-30-2005, 02:37 AM   #2
musicman_ace
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Location: Indiana
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Did udev assign it to /dev/uba1
 
Old 05-30-2005, 01:01 PM   #3
ashlock
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Distribution: Fedora Core 2, RH 9
Posts: 33

Original Poster
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Thanks musicman_ace for restoring my faith in the force, you're a genius!

I found that I didn't have the udev package installed, so I did a 'yum install udev' and then 'mount -tvfat /udev/uba1 /mnt/muvo' and it worked! None of the 10,000 posts I googled for usb sticks mentioned anything about udev, only /proc/scsi/scsi, and since I actually got it working using /proc/scsi/scsi for two of the 1000 times of trying, I thought that was the only way to get it working.


Then I added

/udev/uba1 /mnt/muvo vfat user 0 0

to /etc/fstab so I could just type 'mount /mnt/muvo'. beautiful. If you're ever in Boulder, lunch is on me.

Now, is there any way to stop usb power before I unmount and unplug it? In windows, stopping it causes the red power light on the muvo to turn off before unplugging it.


thanks

Last edited by ashlock; 05-30-2005 at 01:14 PM.
 
Old 05-30-2005, 03:00 PM   #4
musicman_ace
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add lines to fstab only works if udev consistantly assign the same device node to it. I've never seen a /dev/uba1 before, so at some point it may assign it /dev/sda1. If it doesn't work, just try dmesg as that is where I got it from.
 
Old 05-30-2005, 07:44 PM   #5
kaz2100
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Location: Penguin land, with apple, no gates
Distribution: Debian testing woody(32) sarge etch lenny squeeze(+64) wheezy jessie
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How about
http://www.usenetlinux.com/archive/i.../t-129855.html
 
Old 05-30-2005, 07:49 PM   #6
ashlock
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Hmm, maybe disabling ub would let the scsi approach work as discussed in that post.
However, I would have to recompile my kernel just to check it out. I will stick with the udev approach as it is working consistently for now.
 
Old 06-02-2005, 03:58 PM   #7
kaz2100
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Registered: Apr 2005
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Today, I just ran into related issue.

5.2.4 in following
http://www.debian.org/releases/testi...upgrade-to-2.6

may help in case things go wrong.
 
  


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