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    SubjectRe: usbmc seems broken
    On Thu, Feb 04, 2010 at 08:32:21AM +0000, Neil Kalo wrote:
    > Upgraded to: 2.6.32.7-37.fc12.i686.PAE
    >
    > Still no joy. Plugging in the meter gives:
    >
    > Feb 4 08:27:04 localhost kernel: usb 4-1: new full speed USB device
    > using ohci_hcd and address 2
    > Feb 4 08:27:04 localhost kernel: usb 4-1: New USB device found,
    > idVendor=05e6, idProduct=2100
    > Feb 4 08:27:04 localhost kernel: usb 4-1: New USB device strings:
    > Mfr=2, Product=3, SerialNumber=1
    > Feb 4 08:27:04 localhost kernel: usb 4-1: Product: 2100 Multimeter
    > Feb 4 08:27:04 localhost kernel: usb 4-1: Manufacturer: KEITHLEY INSTRUMENTS
    > Feb 4 08:27:04 localhost kernel: usb 4-1: SerialNumber: 1160791
    > Feb 4 08:27:04 localhost kernel: usb 4-1: configuration #1 chosen from 1 choice
    > Feb 4 08:27:04 localhost kernel: usbcore: registered new interface
    > driver usbtmc
    >
    > But "cat /dev/usbtmc0" gives:
    > cat: /dev/usbtmc0: Connection timed out
    >
    > And in the logs:
    > Feb 4 08:27:35 localhost kernel: usbtmc 4-1:1.0: Unable to read data,
    > error -110
    >
    > The very old driver still works:
    >
    > Feb 4 08:31:02 localhost kernel: USBTMC: MKDEV
    > Feb 4 08:31:02 localhost kernel: USBTMC: CDEV_ADD f900000 1
    > Feb 4 08:31:02 localhost kernel: usbcore: registered new interface
    > driver USBTMC
    >
    > [root@mc22 usbtmc-module]# cat /dev/usbtmc0
    > Minor Number Manufacturer Product Serial Number
    > 001 KEITHLEY INSTRUMENTS 2100 Multimeter 1160791

    Care to try to figure out what is going wrong here and send a patch?

    thanks,

    greg k-h


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