USB peripheral device not found on USB OTG port with Linux 3.0.0 kernel
I am having problems with a USB OTG port on my embedded system. I have a Gumstix Overo Air embedded computer running on a Stagecoach expansion board. The Overo runs an embedded distribution called Angstrom which uses Linux kernel 3.0.0. I am trying to connect a USB peripheral device. This device is a General Dynamics radio. The radio is usually connected to a Windows or Linux desktop with a USB standard A 2.0 cable. A Belcarra CDC ethernet driver is used to connect to the radio over tcp/ip.
The connection to the Overo computer USB OTG port is unreliable. Sometimes the connection is found, and sometimes it is not. I cannot seem to repeat the issue. It's very important for my system to always find the radio when it is plugged into the USB OTG port. I looked at '/var/log/messages' and also the output from 'lsusb -v' Basically, both just output information about the radio when it is found, and don't output anything about the radio or that USB port when the radio is not found.
How can I debug this problem? I've tried the Gumstix mailing list but have not gotten any help. I'm hoping this is a Linux issue and I can get some help on here!! :-/ I'm sorry in advance if this forum does not cover embedded questions.
Any help is very very much appreciated. Thanks.
Have you tried earlier or later kernel releases? Are you compiling your own kernel?
Are you using a board config files. How is the radio device being powered.
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