Probleme mit ttyUSB0 bei FTDI Converter

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c3po
DD-WRT Novice


Joined: 26 Jun 2011
Posts: 22

PostPosted: Tue Apr 03, 2012 21:08    Post subject: Probleme mit ttyUSB0 bei FTDI Converter Reply with quote
Hi,

ich versuche einen FTDI Chip an einem Belkin Play, alias F7D4302 zum laufen zu bekommen. Es das DD-WRT v24-sp2 (12/08/11) big - build 17990M NEWD-2 K2.6 Eko drauf.

mit
Code:
insmod usbserial.ko
insmod ftdi_sio.ko


bekomme ich mit dmesg
Code:
usbcore: registered new interface driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI USB Serial Device
usbcore: registered new interface driver ftdi_sio
drivers/usb/serial/ftdi_sio.c: v1.4.3:USB FTDI Serial Converters Driver
usb 1-1.4: new full speed USB device using ehci_hcd and address 4
usb 1-1.4: configuration #1 chosen from 1 choice
ftdi_sio 1-1.4:1.0: FTDI USB Serial Device converter detected
drivers/usb/serial/ftdi_sio.c: Detected FT232RL
usb 1-1.4: FTDI USB Serial Device converter now attached to ttyUSB0


jedoch erhalte ich kein /dev/ttyUSB0 und alle "anderen" lassen sich nicht ansprechen

Code:
root@DD-WRT:/# find -name ttyUSB*
./sys/class/tty/ttyUSB0
./sys/bus/usb-serial/drivers/ftdi_sio/ttyUSB0
./sys/bus/usb-serial/devices/ttyUSB0
./sys/devices/pci0000:00/0000:00:04.1/usb1/1-1/1-1.4/1-1.4:1.0/ttyUSB0
root@DD-WRT:/#


ein
Code:
mknod /dev/ttyUSB0 c 188 0
hat auch nicht funktioniert

Wie bekomme ich Zugriff auf das ttyUSB ?
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ako673de
DD-WRT Novice


Joined: 23 Jul 2012
Posts: 2

PostPosted: Mon Jul 23, 2012 19:09    Post subject: Reply with quote
Hello,

I have another NAS, a Conceptronic CH3MNAS, but exactly the same problem: Compiled the two kernel modules, insmodded them, plugged the serial device (a FT232) and dmesg tells me that my device has been connected to ttyUSB0 - but the device will not show up in /dev and therefore remains unaccessible.

Something that makes me wonder is that ftdi_sio.ko is "not used by anything", well, at least if you can trust the output of lsmod.

Now that some time went by: Did you manage to solve this issue? Any hints are thankfully appreciated Wink...

best regards
ako673de
ako673de
DD-WRT Novice


Joined: 23 Jul 2012
Posts: 2

PostPosted: Thu Jul 26, 2012 18:15    Post subject: SOLVED! Reply with quote
http://www.linux-usb.org/USB-guide/x356.html beschreibt, wie man die /dev-Knoten für die USB-TTY-Schnittstellen manuell kreiert.

Hoffe die Info kommt für Dich nicht zu spät Rolling Eyes...

ako673de
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