On Tue, 8 May 2007, Dovydas Sankauskas wrote: > Hi. > I have problem with USB to Dual serial converter. Device has one USB > port and two serial ports. I suppose, when I plug it into usb port, I > should get two devices created: ttyUSB0 and ttyUSB1. When I plug > device into usb port, I get > > [EMAIL PROTECTED]:~$ lsusb > Bus 001 Device 031: ID 0403:6001 Future Technology Devices > International, Ltd 8-bit FIFO > Bus 001 Device 030: ID 0403:6001 Future Technology Devices > International, Ltd 8-bit FIFO > Bus 001 Device 029: ID 058f:9254 Alcor Micro Corp. Hub > > It looks like there are two devices, that's ok. But actually I get > only one ttyUSB0 device, but there is no ttyUSB1: > > [EMAIL PROTECTED]:~$ l /dev/ttyU* > crw-rw---- 1 root dialout 188, 0 2007-05-08 16:58 /dev/ttyUSB0 > > Device uses ftdi_sio module: > > [EMAIL PROTECTED]:~$ lsmod |grep usb > usbserial 32488 1 ftdi_sio > usbhid 26592 0 > hid 27392 1 usbhid > usbcore 134280 6 ftdi_sio,usbserial,usbhid,ehci_hcd,uhci_hcd > > > I do not know what other relevant output should I provide. There is my > kernel version and /var/log/messages output, produced when I plug in > the device: > > > [EMAIL PROTECTED]:~$ uname -a > Linux pasaka 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 > i686 GNU/Linux > > > > [EMAIL PROTECTED]:~/siuntos/a$ tail -f /var/log/messages > May 8 17:23:57 pasaka kernel: [146564.484000] usb 1-2: new full speed > USB device using uhci_hcd and address 32 > May 8 17:23:57 pasaka kernel: [146564.656000] usb 1-2: configuration > #1 chosen from 1 choice > May 8 17:23:57 pasaka kernel: [146564.656000] hub 1-2:1.0: USB hub found > May 8 17:23:57 pasaka kernel: [146564.660000] hub 1-2:1.0: 4 ports detected > May 8 17:23:57 pasaka kernel: [146564.976000] usb 1-2.1: new full > speed USB device using uhci_hcd and address 33 > May 8 17:23:57 pasaka kernel: [146565.132000] usb 1-2.1: > configuration #1 chosen from 1 choice > May 8 17:23:57 pasaka kernel: [146565.136000] ftdi_sio 1-2.1:1.0: > FTDI USB Serial Device converter detected > May 8 17:23:57 pasaka kernel: [146565.136000] > drivers/usb/serial/ftdi_sio.c: Detected FT232BM > May 8 17:23:57 pasaka kernel: [146565.136000] usb 1-2.1: FTDI USB > Serial Device converter now attached to ttyUSB0 > May 8 17:23:58 pasaka kernel: [146565.344000] usb 1-2.2: new full > speed USB device using uhci_hcd and address 34 > May 8 17:23:58 pasaka kernel: [146565.500000] usb 1-2.2: > configuration #1 chosen from 1 choice > May 8 17:23:58 pasaka kernel: [146565.504000] ftdi_sio 1-2.2:1.0: > FTDI USB Serial Device converter detected > May 8 17:23:58 pasaka kernel: [146565.504000] > drivers/usb/serial/ftdi_sio.c: Detected FT232BM > May 8 17:23:58 pasaka kernel: [146565.504000] usb 1-2.2: FTDI USB > Serial Device converter now attached to ttyUSB1
So ttyUSB1 does get created. > May 8 17:23:58 pasaka kernel: [146565.616000] usb 1-2.2: usbfs: > interface 0 claimed by ftdi_sio while 'brltty' sets config #1 > May 8 17:23:58 pasaka kernel: [146565.620000] ftdi_sio ttyUSB1: FTDI > USB Serial Device converter now disconnected from ttyUSB1 > May 8 17:23:58 pasaka kernel: [146565.620000] ftdi_sio 1-2.2:1.0: > device disconnected And then it gets destroyed. Do you have any idea what this "brltty" program is? It seems to be the cause of your problem. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
