On Tue, Oct 5, 2010 at 9:35 PM, Oliver Neukum <oneukum@xxxxxxx> wrote: > Am Dienstag, 5. Oktober 2010, 17:58:11 schrieb Ramya Desai: >> The debug messages I captured after connecting the device to the >> LInux system are, >> ------------------------------------------------------- >> [32646.880029] usb 2-2: new full speed USB device using uhci_hcd and address 12 >> [32647.053397] usb 2-2: configuration #1 chosen from 1 choice >> [32647.056423] cdc_acm 2-2:1.0: This device cannot do calls on its >> own. It is not a modem. >> [32647.056452] cdc_acm 2-2:1.0: ttyACM2: USB ACM device >> [32647.296031] usb 3-1: new full speed USB device using uhci_hcd and address 12 >> [32647.450676] usb 3-1: configuration #1 chosen from 1 choice >> --------------------------------------------------------- >> >> I don't know, whether I am following the correct procedure to >> communicate with my CDC device. > > You are not following the correct procedure. The driver for CDC ACM devices > is cdc_acm. According to your log it is autoloaded. Use /dev/ttyACMx > to talk to your device. I used /dev/ttyACM2 (as showed in debug messages) as well. With this I didn't get any error with open(). However I am not able to read/write from the device. Thanks and Regards, Ramya -- 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
