On Mon, 27 Dec 2004, David Relson wrote: > On Mon, 27 Dec 2004 12:09:23 -0500 (EST) > Alan Stern wrote: > > > On Mon, 27 Dec 2004, Sven L�sekann wrote: > > > > > Hello, > > > > > > I have a Sis 741 Chipset in my machine and if I connect my stick the > > > file /proc/bus/usb/devices is no longer readable. The stick does not > > > work and I get errors shutting down my machine. I says unable to umount > > > /home. The scanner and printer on the ohci driver work very well but I > > > need the ehci driver for my stick and then the usb subsystem stops > > > working. After I disconnect the stick I get no entry in > > > /var/log/messages. I hope somebody has an idea how to solve this problem. > > > > Try turning on the USB verbose debugging switch in the kernel > > configuration, and then see what dmesg says when you plug in the USB > > stick. > > > > Alan Stern > > Alan, > > With CONFIG_USB_DEBUG=y, the requested dmesg output is below. Of my 2 > USB devices, the SanDisk (memory stick) works great while the KingWin > enclosure doesn't. Is there something I need to do to increase message > verbosity?
That message above was addressed to Sven L�sekann, not to you! To get more information, you need to set CONFIG_USB_STORAGE_DEBUG=y. > ###### SanDisk insert/remove ###### > > usb 4-1: new high speed USB device using address 2 > scsi0 : SCSI emulation for USB Mass Storage devices > Vendor: SanDisk Model: Cruzer Mini Rev: 0.1 > Type: Direct-Access ANSI SCSI revision: 02 > SCSI device sda: 501759 512-byte hdwr sectors (257 MB) > sda: Write Protect is off > sda: Mode Sense: 03 00 00 00 > sda: assuming drive cache: write through > /dev/scsi/host0/bus0/target0/lun0: p1 > Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 > USB Mass Storage device found at 2 > usb 4-1: USB disconnect, address 2 Looks good. Except that the number of sectors is odd, which is suspicious. Most likely the device is reporting that it has one more sector than it really does. > ###### KingWin (Cypress) insert/remove ###### > > usb 4-2: new high speed USB device using address 3 > scsi1 : SCSI emulation for USB Mass Storage devices > USB Mass Storage device found at 3 > usb 4-2: USB disconnect, address 3 Definitely need more information here. CONFIG_USB_STORAGE_DEBUG will help. Alan Stern ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
