Linux: Timed out waiting for a response.

[stone]

On a NSLU2 with Debian 5.0

Ultra-simple CFA-635 command-line communications example.
Crystalfontz America, Inc. http://www.crystalfontz.com

Usage:
./example-635 PORT BAUD
PORT is something like "/dev/ttyS0" or "/dev/usb/ttyUSB0"
BAUD is 19200 or 115200
To clear the display, enter "clear" as an optional third parameter

Serial_Init:: success
"/dev/ttyS0" opened at "115200" baud.

Timed out waiting for a response.
Timed out waiting for a response.
Timed out waiting for a response.
Timed out waiting for a response.

Ctrl-C to exit.
Updated display, now waiting for packets

Works with windos testing tool, any ideas?

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[CF Tech]

Is this a USB display or serial display?

If it is USB, did the OS load the driver, that is does something like "/dev/usb/ttyUSB0" exist?

 

[stone]

Its a USB-Device.

It works now, thanks alot for the tip. Fixed:

./example-635 /dev/ttyUSB0 115200
Ultra-simple CFA-635 command-line communications example.
Crystalfontz America, Inc. http://www.crystalfontz.com

Usage:
./example-635 PORT BAUD
PORT is something like "/dev/ttyS0" or "/dev/usb/ttyUSB0"
BAUD is 19200 or 115200
To clear the display, enter "clear" as an optional third parameter

Serial_Init:: success
"/dev/ttyUSB0" opened at "115200" baud.

C=95(31 = Send Data to LCD (row,col)),L=0,D="",CRC=0x5F78
C=95(31 = Send Data to LCD (row,col)),L=0,D="",CRC=0x5F78
C=95(31 = Send Data to LCD (row,col)),L=0,D="",CRC=0x5F78
C=95(31 = Send Data to LCD (row,col)),L=0,D="",CRC=0x5F78

Ctrl-C to exit.
Updated display, now waiting for packets