Troubleshooting Remote Usb - HP Xw460c - ProLiant - Blade Workstation User Manual

The registered classes and subclasses are documented by the USB Device Working Group. The DWG's latest
document for 1.0 defined class codes is hosted at:
www.usb.org/developers/defined_class

6-3-7 Troubleshooting remote USB

If you have problems connecting a remote USB device from a Local Computer to a Remote Computer, the
following checklist may help identify the problem.
Computers supporting remote USB
Ensure that both the Remote Computer and the Local Computer support remote USB—see Section 2-16-5,
"Computers supporting remote
Supported USB devices
Verify that the USB device you're using is supported. HP has tested a number of USB devices to verify they work
correctly when attached to a Remote Computer from a Local Computer. See
by RGS for a list of supported USB devices.
Check USB cable connections
Verify that the USB device is physically connected to the Local Computer. Check to see that it has power and is
turned on. Some devices may require that the user initiate an action before it connects. For example, Palm PDA
devices require starting a HotSync operation for the device to connect and appear on the remote Sender system.
To further verify your connections, recognized devices on the Receiver system appear in the Proc file system under
the /proc/devices/usb_remote directory. At least two files appear in this directory for a single connected
device:
/proc/devices/usb_remote/devices — File contains a list of recognized devices by the Receiver
•
system.
/proc/devices/usb_remote/# — If only one USB device is recognized, the "devices" file will have a
•
single entry, 192. The file descriptor named 192 is the Remote USB device. Dumping this file with 'cat
192', for example, displays specific data about device 192. This should reflect the connected USB device. If
multiple devices are connected, then each will have a file descriptor numbered consecutively starting at 192.
Reset the USB device
If the USB device has a reset button, press the button. If the device is in an incorrect state, it may fail to connect.
Pressing the reset button may allow the device to connect.
USB."
Appendix B: USB devices supported
Advanced capabilities 114