linux-kernel - Re: usbmc seems broken

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Date:	Tue, 26 Jan 2010 17:59:47 -0800
From:	Greg KH <greg@...ah.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Neil Kalo <neilkalo@...il.com>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, Steve Holland <sdh4@...tate.edu>,
	Oliver Neukum <oliver@...kum.org>
Subject: Re: usbmc seems broken

On Tue, Jan 26, 2010 at 05:01:25PM -0800, Andrew Morton wrote:
> (cc's added)
> 
> On Fri, 22 Jan 2010 16:40:06 +0000
> Neil Kalo <neilkalo@...il.com> wrote:
> 
> > I cannot get usbtmc to work with my device. I am using fedora 12:
> > 2.6.31.12-174.2.3.fc12.i686.PAE
> > 
> > Jan 22 15:40:26 localhost kernel: usb 4-1: new full speed USB device
> > using ohci_hcd and address 4
> > Jan 22 15:40:26 localhost kernel: usb 4-1: New USB device found,
> > idVendor=05e6, idProduct=2100
> > Jan 22 15:40:26 localhost kernel: usb 4-1: New USB device strings:
> > Mfr=2, Product=3, SerialNumber=1
> > Jan 22 15:40:26 localhost kernel: usb 4-1: Product: 2100 Multimeter
> > Jan 22 15:40:26 localhost kernel: usb 4-1: Manufacturer: KEITHLEY INSTRUMENTS
> > Jan 22 15:40:26 localhost kernel: usb 4-1: SerialNumber: 1160791
> > Jan 22 15:40:26 localhost kernel: usb 4-1: configuration #1 chosen from 1 choice
> > Jan 22 15:40:26 localhost kernel: usbtmc 4-1:1.0: can't read capabilities

This was a bug in this version of the driver.

Please upgrade to 2.6.32, the problem is fixed.

If you are curious, commit id d0a38365d9585bf3fb71f7c57fd532441a14f3e8
solved the problem.

Hope this helps,

greg k-h
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