From: Oliver Neukum <oliver@neukum.org>
Organization: Novell
To: Ed W <lists@wildgooses.com>, linux-usb@vger.kernel.org
Subject: Re: How to add new CDC-ACM usb modem device to supported list?
Date: Mon, 26 Jan 2009 13:00:51 +0100
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Am Monday 26 January 2009 12:21:18 schrieb Ed W:
 
> dmesg
> [5075781.727325] usb 6-2: new full speed USB device using uhci_hcd and
> address 8
> [5075781.911917] usb 6-2: configuration #1 chosen from 1 choice
> [5075781.915864] hci_usb: probe of 6-2:1.0 failed with error -5
> [5075781.915879] cdc_acm 6-2:1.0: ttyACM0: USB ACM device
> 
> 
> Presumably this error -5 is relevant??

That is from hci_usb, the old bluetooth dongle driver. Why this probes your
device I don't know, but it should work anyway. The cdc-acm driver can
be compiled with extra debugging. It has the lines:

#undef DEBUG
#undef VERBOSE_DEBUG

If you replace #undef with #define you get more debugging output.

	Regards
		Oliver
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