(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 > > If I compile the original Agilent module from > "http://www.home.agilent.com/upload/cmc_upload/All/usbtmc.html"; It > works fine: > > Jan 22 15:37:45 localhost kernel: usb 4-1: new full speed USB device > using ohci_hcd and address 3 > Jan 22 15:37:45 localhost kernel: usb 4-1: New USB device found, > idVendor=05e6, idProduct=2100 > Jan 22 15:37:45 localhost kernel: usb 4-1: New USB device strings: > Mfr=2, Product=3, SerialNumber=1 > Jan 22 15:37:45 localhost kernel: usb 4-1: Product: 2100 Multimeter > Jan 22 15:37:45 localhost kernel: usb 4-1: Manufacturer: KEITHLEY INSTRUMENTS > Jan 22 15:37:45 localhost kernel: usb 4-1: SerialNumber: 1160791 > Jan 22 15:37:45 localhost kernel: usb 4-1: configuration #1 chosen from 1 choice > Jan 22 15:37:45 localhost kernel: USBTMC: MKDEV > Jan 22 15:37:45 localhost kernel: USBTMC: CDEV_ADD f900000 1 > > Note that I do get one error line per module load, but this does not > prevent the device from working in my application: > Jan 22 15:38:21 localhost kernel: USBTMC: Unable to read data, error -110 > > This error also sometimes occurs with the standard kernel module, but > I never get a functioning connection to my device: > Jan 16 23:43:36 localhost kernel: usbtmc 1-4.1.1:1.0: can't read capabilities > Jan 16 23:52:31 localhost kernel: usbtmc 1-4.1.1:1.0: Unable to read > data, error -110 > > Where do I go from here? -- 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
