USB 2.0 Issues When using USB 2.0 devices, some problems may be present. In older versions of Ubuntu this can be worked around by unloading the appropriate kernel module: sudo rmmod ehci_hcd Ubuntu 10.04 Recent version of Ubuntu, and Linux in general, need only a few kernel modules to support USB mass storage devices. Everything else is handled automatically by hal and udev. When you connect a USB device you should get a message in /var/log/kern.log like this one: [ 5762.680031] usb 1-2: new high speed USB device using ehci_hcd and address 4 [ 5763.340703] usb 1-2: configuration 1 chosen from 1 choice However, if that device is a USB storage device (flash drive) and is not found anywhere, you may have a missing module. Make sure the following modules are inserted: sudo modprobe hid sudo modprobe usbhid sudo modprobe usb_storage Particularly, when usb_storage is inserted, you should get a message like this one: [ 712.617279] Initializing USB Mass Storage driver. [ 712.617352] usbcore: registered new interface driver usb-storage [ 712.618240] USB Mass Storage support registered. Now, if you insert your flash drive again, it will be assigned a SATA interface and will be mounted: [ 727.076031] usb 1-2: new high speed USB device using ehci_hcd and address 4 [ 727.736450] usb 1-2: configuration 1 chosen from 1 choice [ 727.757057] scsi4 : SCSI emulation for USB Mass Storage devices [ 732.761591] scsi : Direct- Access HP v100w 4096 PQ: 0 ANSI: 0 CCS [ 732.763848] sd : Attached scsi generic sg2 type 0 [ 732.765576] sd : [sdb] byte logical blocks: (4.00 GB/3.73 Gi B) [ 732.772884] sd : [sdb] Write Protect is off [ 732.776462] sdb: sdb1 [ 732.782332] sd : [sdb] Attached SCSI removable disk Buffer I/ O Errors If you see errors related to Buffer I/ O when attaching a USB Storage device, there are two ways to work around it. First, try using.
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0_9 rivers Catalog ⇒ Hard Disk Drive ⇒ Microsoft ⇒ HP v100w USB Device Drivers Installer for HP v100w USB Device If you don’t want to waste time on hunting after the needed driver for your PC, feel free to use a dedicated self-acting installer. It will select only qualified and updated drivers for all hardware parts all alone. To download SCI Drivers Installer, follow this link. Device: HP v100w USB Device Drivers Installer Version: Date: File Size: 1.12 Mb Supported OS: Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8 Download Drivers Installer HP v100w USB Device: Drivers List 4 drivers are found for ‘ HP v100w USB Device’. To download the needed driver, select it from the list below and click at ‘ Download’ button. Please, ensure that the driver version totally corresponds to your OS requirements in order to provide for its operational accuracy. Version: Download Date: File Size: 3.08 M Supported OS: Windows XP 64bit, Windows Vista 64bit, Windows 7 64bit, Windows 8 64bit Version: 5 Download Date: File Size: 43.55 K Supported OS: Windows 7 64bit Version: 5 Download Date: File Size: 36.41 K Supported OS: Windows 7 32bit © Pridwell Corporation 2014. All rights protected.
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