On Mon, 27 Dec 2004 12:09:23 -0500 (EST) Alan Stern wrote: > On Mon, 27 Dec 2004, Sven Lösekann 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? Regards, David ###### System Startup ###### usbcore: registered new driver usbfs usbcore: registered new driver hub USB Universal Host Controller Interface driver v2.2 uhci_hcd 0000:00:10.0: UHCI Host Controller uhci_hcd 0000:00:10.0: irq 11, io base 0000e000 uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 1 hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected uhci_hcd 0000:00:10.1: UHCI Host Controller uhci_hcd 0000:00:10.1: irq 10, io base 0000e400 uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 2 hub 2-0:1.0: USB hub found hub 2-0:1.0: 2 ports detected uhci_hcd 0000:00:10.2: UHCI Host Controller uhci_hcd 0000:00:10.2: irq 11, io base 0000e800 uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 3 hub 3-0:1.0: USB hub found hub 3-0:1.0: 2 ports detected ehci_hcd 0000:00:10.3: EHCI Host Controller ehci_hcd 0000:00:10.3: irq 5, pci mem e0811e00 ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 4 ehci_hcd 0000:00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10 hub 4-0:1.0: USB hub found hub 4-0:1.0: 6 ports detected SCSI subsystem initialized Initializing USB Mass Storage driver... usbcore: registered new driver usb-storage USB Mass Storage support registered. ###### 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 ###### 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 ------------------------------------------------------- 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/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
