I have recently installed SUSE Linux 10.1 on my PC. At first I had no trouble with USB and could access my Sony memory stick without any problems. However, a few days ago disaster struck. Suddenly the memory stick was no longer recognised and along with it other USB accessories, e.g. a memory card reader. Strangely, a NEC diskette drive attached via the rear USB sockets is still working fine.
Now, I can't blame Linux for this problem, for the USB peripherals are no longer visible in Windows either. Indeed, I have had similar trouble in the past, when the USB ports have mysteriously disappeared (and I was only using Windows). Even more mysteriously, they have then after weeks or months suddenly come back, without my having done anything! With Linux I had hoped that I might get more insight into what is going on, however I cannot say that I am much the wiser. All I can report is: 1) /proc/bus/usb/devices is not defined. 2) lsusb reports Bus 002 Device 003: ID 0409:0040 NEC Corp. USB UF000x Bus 002 Device 001: ID 0000:0000 OHCI Host Controller Bus 004 Device 001: ID 0000:0000 EHCI Host Controller Bus 001 Device 001: ID 0000:0000 OHCI Host Controller Bus 003 Device 001: ID 0000:0000 OHCI Host Controller 3) At startup there are messages like: usb usb4: new device found, idVendor=0000, idProduct=0000 usb usb4: new device strings: Mfr=3, Product=2, SerialNumber=1 usb usb4: Product: EHCI Host Controller usb usb4: Manufacturer: Linux 2.6.16.13-4-default ehci_hcd usb usb4: SerialNumber: 0000:00:03.3 usb usb4: configuration #1 chosen from 1 choice hub 4-0:1.0: USB hub found usb 4-3: new high speed USB device using ehci_hcd and address 2 usb 4-3: device descriptor read/64, error -32 usb 4-3: device descriptor read/64, error -32 usb 4-3: new high speed USB device using ehci_hcd and address 3 usb 4-3: device descriptor read/64, error -32 usb 4-3: device descriptor read/64, error -32 usb 4-3: new high speed USB device using ehci_hcd and address 4 usb 4-3: device not accepting address 4, error -32 usb 4-3: new high speed USB device using ehci_hcd and address 5 usb 4-3: device not accepting address 5, error -32 Googling for help, I see that many other people have had similar messages (and even the phenomenon of USB ports disappearing). But I haven't found any suggestions for a solution. My own suspicion, because of the sporadic nature of the trouble, is that it is a hardware problem. But maybe someone here has a better idea. Does anybody know what the error messages mean? If there are no solutions, I suppose I'll just have to wait and hope that USB decides to come back again some day, as it has in the past. Many thanks for any help. Eric ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users