openocd - unable to open ftdi device: device not found

Shakthi Kannan shakthimaan at gmail.com
Thu Nov 20 21:36:07 CET 2008


Hi,

I am trying to use openocd with debug board (v2+) on Debian Lenny with
libftdi1 (0.13-2), openocd (0.0+r655-1.1). I have loaded ftdi_sio
using:

 modprobe ftdi_sio vendor=0x1457 product=0x5118

On connecting the debug board, it detects /dev/ttyUSB1:

=== OUTPUT ===

Nov 21 01:55:15 debian kernel: usb 3-2: new full speed USB device
using uhci_hcd and address 17
Nov 21 01:55:15 debian kernel: usb 3-2: configuration #1 chosen from 1 choice
Nov 21 01:55:15 debian kernel: hub 3-2:1.0: USB hub found
Nov 21 01:55:15 debian kernel: hub 3-2:1.0: 4 ports detected
Nov 21 01:55:15 debian kernel: usb 3-2.1: new full speed USB device
using uhci_hcd and address 18
Nov 21 01:55:15 debian kernel: usb 3-2.1: configuration #1 chosen from 1 choice
Nov 21 01:55:15 debian kernel: ftdi_sio 3-2.1:1.0: FTDI USB Serial
Device converter detected
Nov 21 01:55:15 debian kernel: drivers/usb/serial/ftdi_sio.c: Detected FT2232C
Nov 21 01:55:15 debian kernel: usb 3-2.1: FTDI USB Serial Device
converter now attached to ttyUSB0
Nov 21 01:55:15 debian kernel: ftdi_sio 3-2.1:1.1: FTDI USB Serial
Device converter detected
Nov 21 01:55:15 debian kernel: drivers/usb/serial/ftdi_sio.c: Detected FT2232C
Nov 21 01:55:15 debian kernel: usb 3-2.1: FTDI USB Serial Device
converter now attached to ttyUSB1

=== END ===

The openocd.cfg is the same as this one:
http://wiki.openmoko.org/wiki/OpenOCD#openocd.cfg

On trying to connect using:

 sudo openocd -f openocd.cfg

it exits with error:

=== ERROR ===

Open On-Chip Debugger 1.0 (2008-08-11-18:16) svn:unknown
$URL: http://svn.berlios.de/svnroot/repos/openocd/trunk/src/openocd.c $
Info:    options.c:50 configuration_output_handler(): jtag_speed: 0, 0
Info:    options.c:50 configuration_output_handler(): Open On-Chip
Debugger 1.0 (2008-08-11-18:16) svn:unknown
Error:   ft2232.c:1516 ft2232_init_libftdi(): unable to open ftdi
device: device not found

=== END ===

Appreciate any help in this regard,

Thanks!

SK

-- 
Shakthi Kannan
http://www.shakthimaan.com



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