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Etaoin Shrdlu <shrdlu <at> unlimitedmail.org> writes: |
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> I need to be sure that the usb port on my laptop is broken, to have it |
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> replaced. |
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> So far, the only evidence I have is a kernel oops during the sysresccd |
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> boot, and some strange behaviour when plugging certain devices in |
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> Windows (eg, an usb mp3 player stick that turns itself off spontaneously |
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> after a few seconds). |
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> So, I need a serious hardware diagnostic program to thoroughly test the |
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> port and the controller, not necessarily running under linux or |
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> opensource. |
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> Could you please give me some suggestions? |
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Well, depending on your chipset/drivers you use, you may want to |
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'use the force, read the source' from a kernel/driver perspective |
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if all else fails? (sometimes there's a debug mode for hardware). |
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For starters, poke around: |
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/usr/portage/dev-libs/libusb |
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google for 'usb diagnostic' |
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usbview <is a basic admin tool, maybe not too diag oriented though> |
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emerge -s usb |
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will give you a listing of some specific applications for specific |
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hardware. Maybe one of those applications has some advanced diags |
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that will allow you to troubleshoot your usb subsystem, by |
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running diags on a specific usb device? |
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You may want to also look on the net for a 'usb sniffer' to sniff |
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your usb data traffic. That will ensure your problem is in your |
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hardware, and not a firmware upgrade issue to your usb(bios). Also |
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make sure your problems are related to other usb devices and not just |
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a single usb device. That way you have confidence that the usb |
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subsystem is at fault and not a specific device's hardware/software. |
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HTH, |
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James |
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-- |
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