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Old 10-25-2008, 02:32 PM   #1
shariefbe
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USB module


which USB module will detect the USB device is Connected to the USB port?How thw port is detecting the device when connected to the port?
 
Old 10-26-2008, 05:22 PM   #2
ciotog
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Basically a USB host controller is connected to a USB hub which is responsible for detecting devices that are attached to it, the host controller will poll the hub periodically and ask if any new devices are connected.

If you're looking at testing a device, you might be interested in this:
http://www.linux-usb.org/usbtest/

The USB specifications are available for free here:
http://www.usb.org/developers/docs/

This is a little old, but it might give some good info:
http://www.lrr.in.tum.de/Par/arch/us...sbdoc-1.32.pdf
 
Old 10-27-2008, 09:57 PM   #3
shariefbe
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ya thank you...
 
Old 10-28-2008, 01:20 AM   #4
shariefbe
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is there any module to identify the common USB port?
 
Old 10-28-2008, 01:31 AM   #5
ciotog
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Well you might have "lsusb" available, which will provide lots of information about the usb device subsystem. Try the -v and -t flags. There's also /proc/bus/usb/devices, assuming you have proc support.

Running dmesg after connecting a device can reveal some information as well.
 
  


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