On Sun, Feb 03, 2008 at 10:25:11AM -0500, Alan Stern wrote:
> On Sun, 3 Feb 2008, Fabio Venturi wrote:
>
> > Hi to the list,
> > I'm trying to use a Commodore Flash Disk MP3 player "CO - C.Muse"
> > (I don't know the chipset)
> > but when i plug it I get this:
> >
> > tail -f /var/log/messages.log
> >
> > [...]
> > Feb 3 14:30:57 silverstar usb 1-4: new high speed USB device using
> > ehci_hcd and address 12
> > Feb 3 14:30:57 silverstar usb 1-4: config 1 interface 0 altsetting 0
> > endpoint 0x83 has an invalid bInterval 200, changing to 11
> > Feb 3 14:30:58 silverstar usb 1-4: configuration #1 chosen from 1
> > choice
> > Feb 3 14:30:58 silverstar usb 1-4: USB disconnect, address 12
> > // ---- END TAIL ---------------------
> >
> > Over and over with address N increasing each time, until unplugged.
> >
> > The stick doesn't need any special driver on WindowsXP, infact
> > there was no CDRom in the box.
> >
> > I'm running:
> > Linux silverstar 2.6.23.9-KaL #1 SMP PREEMPT Sat Dec 1 17:03:59 CET 2007
> > i686 Intel(R) Celeron(R) M processor 1.40GHz GenuineIntel
> > GNU/Linux
> >
> > but also with the stock Archlinux Kernel26 this problem happens.
> >
> > Last note:
> > I've got a 512M pendrive M-Systems Flash Disk Pioneers and it works,
> > also I have an internal hard disk used as exteral with:
> > Myson Century, Inc. USB2.0 to ATAPI Bridge Controller
> >
> > Even the USB external DVD-RW works.
> >
> > I don't know what the problem could be, any hint?
> > Thank you in advance for any help and apologize for my
> > novice-level english.
>
> The log doesn't provide enough information to tell what's wrong. You
> can get more information by using usbmon (see the instructions in the
> kernel source file Documentation/usb/usbmon.txt).
>
> It looks like the mp3 player is simply disconnecting itself. Maybe it
> isn't getting enough power, or maybe there's something wrong with the
> USB cable. Have you tried using the player with a different Linux
> computer?
>
> Alan Stern
One step forward,
if the mp3 is plugged before booting it works,
and I can find it in /dev/sdb
Once I unplug the device I have to reboot the pc to use
it again.
Cheers,
Fabio
That's the output of 'lsusb -v'
[...]
Bus 001 Device 002: ID 10d6:1101 Actions Semiconductor Co., Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x10d6 Actions Semiconductor Co., Ltd
idProduct 0x1101
bcdDevice 1.00
iManufacturer 0
iProduct 1 USB 2.0(HS) Flash Disk
iSerial 2 C621C804E79ACB41A8825E5C3BD13556
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 5 SFF-8070i
bInterfaceProtocol 80
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
[...]
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