USB device descriptor read errors

Issues related to hardware problems
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dbkapogee
Posts: 7
Joined: 2010/08/19 23:55:42

USB device descriptor read errors

Post by dbkapogee » 2010/08/20 00:08:27

I'm designing an embedded USB device. When I connect the device to the computer, I get the following messages:

usb 1-3: device descriptor read/64, error 2
usb 1-3: device descriptor read/64, error 2
usb 1-3: device descriptor read/64, error 2
usb 1-3: device descriptor read/8, error -71
usb 1-3: device descriptor read/8, error -71
usb 1-3: device descriptor read/8, error -71

Note that other USB devices work fine. I am fairly certain that the problem is with my hardware. I'd like info on what these error messages mean to help my debug. Searching Google I wasn't able to find any explanations about what these errors mean exactly.

I'm running Cent OS 5.4 with kernel 2.6.18-164.el5 on an i686

I appreciate any help you can give.

pschaff
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USB device descriptor read errors

Post by pschaff » 2010/08/21 22:35:29

Welcome to the CentOS fora. The following reading is recommended for new users:
[url=http://www.centos.org/modules/newbb/viewtopic.php?topic_id=14274&forum=47]Readme First[/url]
[url=http://www.centos.org/modules/newbb/viewtopic.php?topic_id=14408&forum=47]Installing Software[/url]
[url=http://www.centos.org/modules/newbb/viewtopic.php?topic_id=14273&forum=47]Where to Find Answers[/url]
[url=http://www.centos.org/modules/newbb/viewtopic.php?topic_id=25128&forum=47]How to provide information about your system[/url]

How about [url=http://www.beyondlogic.org/usbnutshell/usb5.htm]USB in a NutShell[/url]?

You should also consider updating with yum. The current release is 5.5 with kernel-2.6.18-194.11.1.el5.

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