Is usb-storage loaded? What driver is bound to the device (look in /proc/bus/usb/devices)?
Matt On Sat, Feb 11, 2006 at 12:15:07PM -0800, Jim McCloskey wrote: > > I recently bought an iAudio M5 music player, largely because the > manufacturer (Cowon) advertises Linux support. And indeed Google shows > many reports of the player working well under Linux. Not for me > though. It's supposed to function as a USB mass storage device with a > vfat filesystem on it. > > When I plug it in to the USB port, it is detected as a USB device and > the kernel reports: > > Feb 11 10:45:37 localhost kernel: usb 5-2: new high speed USB device > using ehci_hcd and address 8 > > and lsusb lists the device as a mass storage device and lists the > interface subclass as SCSI (the relevant entry is below). > > However the necessary kernel-modules are not loaded, sg_scan -i > reports no scsi devices, and no /dev/sd* device file is created. So > the problem is somewhere in the interaction between the USB subsystem > and the SCSI layer. > > But whatever the problem is, it is particular to this device. All > works as it ought to with two Sandisk devices that I use. I plug them > in, they are detected, udev loads the appropriate kernel-modules, > creates the /dev/sda* device files, and creates the symlinks specified > in my local udev rules file; the file-systems on the devices can be > mounted and all is great. > > The kernel is 2.6.15.1 from Debian testing. Udev is 0.084 from Debian > unstable. No hotplug. > > I'm at my wits' end. Any advice or pointers? Perhaps I need to add an > entry to /etc/udev/hotplug.rules to load the needed modules? > > Thanks very much in advance, > > Jim McCloskey > > ---------------------------------------------------------------------- > Bus 005 Device 008: ID 0e21:0520 Cowon Systems, Inc. > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 64 > idVendor 0x0e21 Cowon Systems, Inc. > idProduct 0x0520 > bcdDevice 1.00 > iManufacturer 73 > iProduct 93 > iSerial 103 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 39 > bNumInterfaces 1 > bConfigurationValue 2 > iConfiguration 0 > bmAttributes 0x80 > MaxPower 498mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 3 > bInterfaceClass 8 Mass Storage > bInterfaceSubClass 6 SCSI > bInterfaceProtocol 6 > iInterface 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 1 > 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 1 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x83 EP 3 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0002 1x 2 bytes > bInterval 9 > ---------------------------------------------------------------------- > > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you grep through log files > for problems? Stop! Download the new AJAX search engine that makes > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 > _______________________________________________ > [email protected] > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-users -- Matthew Dharm Home: [EMAIL PROTECTED] Maintainer, Linux USB Mass Storage Driver C: They kicked your ass, didn't they? S: They were cheating! -- The Chief and Stef User Friendly, 11/19/1997
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