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 On Wed, Jan 27, 2010 at 1:59 AM, Greg KH <greg@xxxxxxxxx> wrote: > 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@xxxxxxxxx> 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
